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LED Grow Lights

LED Grow Lights

2013, 2014 and 2015 LED Grow Light Review

There has been much recent controversy among cannabis growers about LED grow lights. Just a couple of years ago the thought of growing weed under LED lighting would have been laughable. However, recent advances in LED technology have led to more and more growers seeing success and LED lighting sources are fast growing in popularity. Like anything, improvements make leaps and bounds very quickly and these days LEDs are used in all kinds of lighting in your home, office and car including successful marijuana grows.

We are here to tell you that growing marijuana with LEDs works. The best models offer results better than HIDs together with huge electrical, management and heat savings. A number of our members in the HTG forum have shifted to growing under LED and are not going back to the old ways of burning electricity with HIDs.

What LEDs are available?

Nearly all are produced in China even if they are designed in the USA. This is the broad concept though of the market.

Cheap – Poor spectrum, LEDs and build quality

UFO type LEDs from many online sources and of course eBay. They may quote all kinds of huge Watts or ‘full spectrum’ but when you see big red and big blue LEDs in a cheap looking plastic housing you know this is the bottom end of the market. You will not be getting top shelf LEDs and results / yield will be drastically affected. We just don’t recommend these products at all. You are far better off buying a HPS/MH system and deal with the added electricity costs and ventilation issues.

Mid price – Bands of spectrum, fans and reasonable quality

These usually look more the part with better housing, higher quality LEDs that may even include brands like Epistar and Bridgelux. In variably though these will not be full spectrum LED grow lights they will be 6, 8, 11 or 12 band models. These bands will cover sections (bands) of the whole PAR spectrum but will miss chunks here and there. The sun doesn’t miss any of the spectrum required to grow and flower plants correctly so why would your plants react to their full potential under them? They don’t. Mid price larger models will incorporate fans for cooling.

High end – Full spectrum, fan-less operation, excellent build quality

These are more often the full spectrum models that cover approximately 420 to 750 nanometres, the PAR range. They include expensive white LEDs and in photos you will see some LEDs look like they are ‘dead’ – not true these are emitting in the far-red portion of the spectrum which is 710 to 850 nanometres, dimly visible to some people eyes. Look for high end components such as brand name LEDs from Epistar, Bridgelux or Cree. Thermal engineering is a key to design with the best being fan-less. LED grow lights that are high Watt and fan-less are designed well because they have dissipated the heat created by the LEDs perfectly using rapid heat sink materials. Then there are self protecting power supplies, UV protected and angled TIR lenses and not to mention the warranty, two years is not enough. LED grow lights with these features offer excellent results with thick and juicy buds.

LED-grow-light-comparison

LEDs pros and cons

  • LEDs have far lower energy consumption running at approximately 60% of an equivalent HID;
  • There is no filament to burn so LEDs have longer bulb times of 50,000 to 60,000 hours versus HIDs which start dropping output considerable at 2,000 to 3,000 hours;
  • LEDs are smaller and faster to emit light and are physically more robust so they relatively shock resistant being solid state components;
  • LEDs’ offer far less heat output, in fact the good ones run pretty much ‘cold to touch’ while HIDs run very hot. LEDs reduce your fire risk considerably;
  • LEDs can focus their light output with the use of lenses rather than disperse the light like HIDs that require reflectors;
  • Precise current (power) management is required with LEDs when compared to HIDs. However, LEDs have the power management built in while the HID lamps rely on external ballasts which also add another 100 to 150 Watts of power consumption;
  • LEDs are more expensive to start a grow with when compared to HID but they are cheaper over the long term;
  • LEDs are instant on and instant off, they do not need to ‘warm up’ like HID lamps;
  • LEDs can be dimmed also if required;
  • LEDs are safe, classed as ‘Class 1 LED product’ as they do not contain mercury like compact fluorescents;
  • LEDs powerful enough for lighting big areas like rooms or greenhouses require more precise current and heat management but are now used in some large areas over CFL and HID lighting.

Brief history of LEDs

How do they work? LED grow lights produce light by passing a current through a semiconductor material. The movement of electrons within the semiconductor releases energy in the form of photons, i.e. light.

LEDs once just came red in color, they were the little low lights in the corner of every TV. These days LEDs have advanced massively, they are now available across the spectrum from ultraviolet through the visible right into infrared wavelengths with very high light output.

LED-spectrum

The first observation of ‘electroluminescence’ was in 1907 by a British experimenter from Marconi Labs named H. J. Round. Then twenty years later, way back in 1927 a Russian named Oldeg Vladimirovich Losev created the first LED but no practical use for it was found. It took until 1955 for semiconductor alloys, namely gallium arsenide (GaAs), gallium antimonide (GaSb), indium phosphide (InP) and silicon-germanium (SiGe) to show infrared emissions at room temperature as firstly observed Rubin Braunstein working with RCA (Radio Corporation America) . Then in 1961 Texas Instruments patented the idea.

How are LED colors made?

The semiconductor material has a p-n junction which is the interface between the two types of semiconductor materials, n-type and p-type, known as ‘n’ and the ‘p’. This is the active site whereby the electronic action of the LED takes place. The color of the light emitted or its wavelength is dependent on the ‘band gap’ energy of the materials forming the p-n junction.

In 1962 -Nick Holonyak Jr., considered by some the father of LEDs, working within General Electric (GE) reported the first visible spectrum LED showing red color. Craford, then graduate student of Holonyak, created the first yellow LEDs and improved the overall brightness of his red and orange LEDs tenfold in 1972.

The Monsanto corporation, yes the seed guys who sued USA farmers, were the first to mass produce visible spectrum LEDs, firstly as indicators, in 1968.

We had the first high powered blue LED (not the first blue) created by Shuji Nakamura of the Nichia Corporation in 1994 which was based on the semiconductor alloy InGaN or Indium gallium nitrite, your new word for the day?

This quickly led to the development of the first white LED using Yttrium aluminium garnet or ‘YAG’, which is a phosphor coating to mix ‘down-converted’ yellow light with blue which produces a visible white light.

Moore’s law which saw the doubling of chip performance every 18 months to two years, applies similarly within the LED industry with a doubling in performance ever 36 months since the late 1960’s due to the improvements in semiconductor and optics.

Full spectrum LEDs vs. 3 band, 5 band, 11 band

As with many plant species, marijuana also has light-mediated development – photomorphogenesis. The blue spectrum stimulates vegetative growth and the yellows, ambers, reds and far-red spectrum stimulates pre-flowering and flowering (reproductive growth). Therefore, growing marijuana to maturity will use the light wavelengths from approximately 420 to 730 nanometres (nm), covering both chlorophyll A and chlorophyll B absorption peaks (Photosynthetically Active Radiation, or PAR for short).

Chl-a_b-carotenoids-absorption1

We now know that LEDs are manufactured using different semiconductor materials – to create LEDs of different wavelengths.

What wavelength or spectrum your LED grow lights offer your marijuana is of paramount importance to your yield. The most expensive LEDs are white, offering a broad spectrum of light like the sun covering much of the visible light spectrum (PAR). You need white LEDs! If you see an LED grow light with just red and blue lights you are not going to achieve a high quality grow at all as the white LEDs are so much closer to mimicking the sun. The table below outlines the different LEDs versus the color and wavelength they produce.

How to make high intensity white LEDs (WLEDs)

  • Use a single LED that emits three primary colors of red, green and blue and mix the colors perfectly to form a white light. These are known as ‘multi-color white LEDs’ or ‘RGB LEDs’ and are more complex to manufacture than the phosphorus type explained below. Multi-color LEDs are at the forefront of LED development because with the right tweaking they can offer nearly any color light we want by mixing primary colors. These are the best type of white LEDs;
  • Or use a phosphor based semiconductor material to convert a blue or even a UV light into the broad or full spectrum white light your plants require. These WLEDs are known as phosphors based white LEDs which are also the easiest to manufacture and therefore the cheapest to buy;
  • There is a third method of making white LED grow lights using zinc selenide (ZnSE) but this is in its early stages.

semiconductor-LED-light

The key difference between WLEDs is how solid their color stability, color rendering and luminous efficiency are key. Color rendering index, CRI, basically means how faithfully the color is produced, you may know the term from using Photoshop. While luminous efficiency is discussed later on. If your LED grow light is constructed using LEDs from brand name suppliers such as Cree or Bridgelux, then these issues will be minimized and cause little affect. It is far easier to get good solid color rendering and luminous efficiency with the multi-color or RGB white LEDs.

  • There are many commercially available LED units that have spectra specifically balanced LEDs for the grow room. This is generally achieved by using a mix of red and blue then white, ambers and far-red ranges so that they cover the entire spectrum;
  • When you see LED grow lights advertized as 3, 5, 6, 11 or 12 band LEDs this means they offer a spectrum with gaps, maybe something like this: 440nm, 470nm, 525nm, 640nm, 660nm, 740nm. So there will be peaks and troughs in the spectrum produced rather than one continuous full or broad spectrum. These ‘6, 11, 12 etc band’ products operate in some but not all of the spectrum required for a successful, fast, big yield crop. These are not full spectrum grow lights;
  • Quite often LED grow light companies are reselling someone else’s product configuration and they simply don’t know what LEDs are mounted in the system;

Did you know that LEDs are now available is very short wavelengths with near UV 375-395 nanometres and more expensive models that achieve wavelengths closer to 240 nm. The absolute wavelength depths of LEDs are known as ‘deep UV’ with labs using diamond to produce 235 nm, boron nitride at 215 and aluminium nitride right down at 210 nm.

LED efficiency versus HID lamps

LEDs are ‘luminous efficient’, which means they produce visible light very efficiently from electricity. For example in 2002 Lumileds manufactured a 5W LED with a luminous efficacy of 18 – 22 lumens per Watt, compare that to the traditional incandescent bulb which at around 80 Watts offers 15 lumens per Watt (lm/Watt). Nichia released a white LED 140 lm/W in 2010. Since then Cree have increased that right up to 254 lumens per Watt at a color temperature of 4,408 K (Kelvin) using the Cree XLamp® which uses silicon carbide technology and runs at 350 mA. Note these figures are in controlled labs and are only the chip, so in real life after the LED has its plastic shell and is mounted these figures will be much lower but they are still better than the HPS lamps with standard HPS lamps running at approximately 100 lm/Watt.

These days, good LED grow lights will save a grower around 50% off their electrical bills. Growing with 2 x 250W (true Watts drawn not potential draw) equals a total power bill of 500 Watts per hour. This setup will offer better but comparable growing to a 1000 Watt HID (HPS or MH) which also requires a 150 Watt ballast. So when you include the ballast and potential ventilation system the savings are more like 60% or more.

High powered LEDs (HPLEDs) – 1W, 2W, 3W & 5W

Normal LEDs used in electronics consume a tiny 30-60 milliwatts (mW) of power at very low amperage; note the word ‘milli’ in there. However high power LEDs running at between 500 milliwatts to over 500 Watts (Yes! Think industrial lighting) are driven from 100’s of mA (milliamps) to over an Ampere. In 1993 the first highly bright blue LEDs were manufactured by the Nichia company and were based on silicon carbide. It wasn’t until 1999 that Philips Lumileds introduced the first 1 Watt LEDs to the market in far larger semiconductor die sizes.

So what is the difference between 1Watt and 3Watt LEDs then?

The 1W and the 3W can tolerate running at a range of power outputs up to and over there named Wattage. So a 3W LED can run at say 1W but it will also be able to run at say 4W too. Why? Well it’s because the names given to these LEDs (1W, 3W, 5W) are only ever a guide as to the power possibilities of the LED. However a 3W LED is built on a larger semiconductor die size when compared to a 1W LED so it is built to run at higher Watts, this why it is named a 3Watt LED.

led grow light penetration

Heat – Thermal management of LED grow lights

Another happy result of LEDs having no filament is that they are far more efficient than other light sources and LEDs produce far less heat. With traditional HID’s, up to 95% of energy is wasted as heat or radiation, whereas LEDs run relatively cool they do still produce some heat. That heat difference means HIDs should be placed two or three feet above the plant canopy while LEDs can be placed extremely close, usually around 12-18 inches, helping prevent ‘stretch’ and directing the light exactly where it’s needed.

LED-thermal-management

Even though LEDs are far more energy efficient and waste a lot less heat than HIDs there are still heat issues associated when running high powered LEDs. LEDs are cool to touch mainly because they do not produce heat in the form of infrared (IR) radiation. The higher the Watts the less energy efficient they become because they turn more and more electricity into heat which is wasteful and needs management.

Where does the heat come from? The heat originates at the semiconductors p-n junction due to its slight inefficiencies when electrical activity is not turned into light. The p–n junction in turn heats the soldering point and that heats the metal core printed circuit board (MCPCB) which then needs to be directed into a heat sink so it dissipates into the atmosphere.

The three areas focused on for heat transfer are convection; which uses a moving fluid such as water or air to cool the device, conduction; whereby heat is transferred from one solid to another until there is no more and the last is radiation but that isn’t used with LEDs.

The best LEDs use heat sinks to control heat. The heat sink medium provides a path from the LED to the medium which dissipates the heat. The best thermal management within high powered LEDs uses heat sinks that include materials such as aluminium, copper, thermoplastics and at the high end of the cost scale, graphite. The heat sink material needs to incorporate a large enough surface area to work so this is why you see the classic ‘fins’ shape layered next to each other to the top of some high end LED grow lights.

Thermal management of LEDs is a science in itself, there are a multitude of methods with the best not using fans (convection) at all. When you include a fan in an LED grow light to manage heat issues it introduces a moving part. Moving parts have a habit of breaking down long before your LEDs fade. However, if you must purchase a unit with fans in it, make sure the LED has a long warranty and the fans are rated for a lifetime that exceeds that of the LEDs.

LED grow light lens – Boost light & direction

LEDs only look like their finished product when the ‘die’ or ‘chip’ is set or encapsulated in a resin or plastic which is known as potting. This plastic shell helps out in many ways. It holds the very delicate system together, mounting the LED is made far easier in products and it acts as a lens or refractive intermediary to boost the light from the semiconductor. As you can imagine there are a lot of different methods of potting these chips to make LEDs – some cheap and some expensive which result in different light output.

LED-how-they-are-made

Light extraction of grow light LEDs is just as important as the semiconductor materials being used. Most materials have very high refractive indices so that light is reflected back and out of the LED.

  • There are many types of lenses and reflectors available to harness the LED’s output and direct it where it will do the grower the most good. A simple, well-designed reflector is usually suitable to do the job, but Total Internal Reflective (TIR) lenses more fully and accurately collect and guide the light;
  • Make sure you choose a reflector or lens product with an output that meets your needs. An LED’s light output is usually a cone with a 160 degree angle. Some products have 120 degree lenses but we find a LED lens with an angle of 90 degrees is just about perfect at directing light deep into the plants. However, too wide a lens spreads the luminous intensity over too great an area, it wastes light, either providing too little power to your plants, too wide a coverage area or both. Some LED grow lights have no lenses and obviously, these are a waste of valuable light, and your money;
  • Narrowing the lens or reflector increases the power delivered to your plants significantly, up to 400-500%, but narrows the effective coverage area. A good trade-off for both problems is to use a medium output angle, from 60-90 degrees. The grow light manufacturer should provide effective coverage charts for their products and some will even perform photometry evaluations for your specific grow area, telling you exactly where to place your light(s) for maximum effect.

LED-light-lens-chip

2013 & 2014 Full spectrum LED grow light review

  • Full spectrum lights carry the blue light for vegging and the yellow, amber, orange and reds for flowering and run between 420 to 750 nanometres.

  • You can replace a 1000 Watt HPS for around 500 Watts of LED (500W actual power) which would yield around 600 grams of dried buds.

  • Good fan-less LEDs run 1W or 3W LEDs and these lights can be situated mere inches above the canopy, however setting them at around 18 inches allows the lights to disperse the light over a larger area and gets better results.

The four LED grow light systems outlined below are all claimed to be full spectrum and are all around the 250W mark, taking into account the true Wattage rather than the total Wattage of the bulbs as explained earlier. Of the four, both the Black Dog BD-240-U and Super Grow’s Spectrum King™ (SK450) can claim to be truly full spectrum, while the Hydro Grow’s Penetrator 168X Pro and Prosource’s Illuminator Pro target specific wavelengths.

The main difference between the Black Dog and the other systems, which may explain the lower price, is that the LEDs don’t have lenses or reflectors to collect and guide the light – reducing concentrated over the plants with a strong percentage of the light missing its’ target. To compensate, the lights need to be placed closer to the plants, reducing the effective growing area.

The Penetrator 168X Pro uses lenses that provide a beam angle of 60 degrees, which creates a more intense light over a relatively small area. The manufacturers also claim that their X2 lens system further increases the intensity, so more light will reach the bottom of the plants. One feature unique to the Penetrator 168X Pro is the switchable power settings from 0.5W to 1W to 3W. This is slightly misleading, as the unit is only designed to deliver just over 1.5W per LED at full power. Hydro Grow attempts to provide PAR data for the Penetrator 168X but if you visit their website you’ll see that is a graphical form that’s very difficult to interpret.

ProSource have opted for variable angled beams. This means, for example, that some may be set at 60 degrees, some at 90 degrees, and others at 120 degrees. The claim here is that this produces more illumination to the tops and the bottoms of the plants. This might allow for a slightly wider growing area but it’s not been proven it has any real advantage over single fixed angle beam.

Super Grow have opted for 90 degree lenses on the Spectrum King™ (SK450) and this is perhaps the best compromise for maximizing the cropping area while maintaining a reasonably high light intensity. On a cost per sq ft of harvest area, the Spectrum King 450 works out best value of the four lighting systems. If you need a larger growing area and are after a slightly more intense light, two SK450s can be bolted together. Super Grow’s spectral distribution data for this twin light arrangement is a very close match to natural daylight.

  • Based on the specifications, the Super Grow Spectrum King™ (SK450) looks like the best value. It produces a continuous spectral distribution that is close to daylight, it uses name brand LEDs, does not require an internal fan due to the impressive thermal management design and comes with 90 degree TIR lenses to concentrate the light on the plants.

  • Where space is limited or if you only want to grow a few plants, The Black Dog BD-240-U is worth considering, with what looks like a good spectral distribution and plenty of light.

  • If all you have space for is a single row of plants, due to its long, narrow geometry, the Penetrator 168X could be the ideal solution, but you may find it hard to justify the high set up cost.

  • The Illuminator Pro Hybrid 350W appears expensive with nothing special to offer. It has a fairly limited spectral distribution and we were slightly put off by the manufacturer not being open about true wattage. The spectral distribution may also be a bit restrictive, depending on what you want to grow.

Black Dog BD-240-U Hydro Grow Penetrator 168x Pro Prosource Illuminator Pro Hybrid 350W Super Grow LED Spectrum King (SK450)
Cost[1] $649 $1,149 $1,199 $899
Watts[2] 240 264 264 250
Cost per Watt[2] $2.70 $4.35 $4.54 $3.59
Dimensions 13.5’x13.5’4′ 19’x13’x3′ 6’x48’x3′ 22’x14’x6
Lenses angled n/a 60 degrees Variable 90 degrees
Harvest area [3] 6.25 sq ft 7.5 sq ft 16 sq ft 16 sq ft
Setup cost per sq ft $103.20 $153.20 $74.94 $56.18
Spectrum coverage full spectrum [4] 5 band [5] red, infra red, and blue full spectrum [6]
Warranty Unknown 3 years 3 years 5 years
  • Advertised price as of August 2013. Shipping not included:
  • Based on maximum input wattage, which may be less than the total wattage of the bulbs. For example, the Hydro Grow Penetrator 168X Pro has 168 x 3W bulbs but it is not possible for them all to run at full capacity;
  • Harvest area for flowering plants. For young plants or leaf crops, harvest area may be 15 to 30% larger;
  • Manufacturer claims that their Phyto-genesis Spectrum™ utilizes hundreds of beneficial light waves that include multiple wavelengths targeting crucial absorption peaks in the red, orange, violet, and blue spectrum, as well as IR and UV;
  • Actual wavelengths not stated;
  • Full spectrum output is augmented by additional discrete LEDs to further enhance the chlorophyll red absorption peaks.

2015 LED Grow Light Review

Advanced Lights

Models: Diamond Series XML150 & XML350

The Diamond Series XML from Advanced Lights are one of the first LED grow light arrays to feature the 10W Cree XML LEDs; a breakthrough in LED technology that massively increases the power of LED grow lights. These LEDs deliver over 1,000 lumens each at full power and are run here in conjunction with Bridgelux 3W LEDs to make a very powerful grow light.

The ‘Diamond Series’ features two models

    • The Diamond Series XML150
    • The Diamond Series XML350

 

Advanced Lights Diamond Series XML150

Advanced-Lights-Diamond-Series-XML350

The difference in the two models is the size, with the larger unit (XML350) covering 4’6” squared as opposed to the 3’ squared of the smaller (XML150) unit.

      • The XML150 has 4 X 10W Cree XML lights and 64 X 3W made up of 4 arrays of Bridgelux LEDs, each containing 16 LEDS. Total potential Watts = 40W + 192W = 232W
      • The XML350 has 10 X 10W Cree XML lights and 144 X 3W made up of 9 arrays of Bridgelux LEDs, each containing 16 LEDS. Total potential Watts = 100W + 432W = 532W

Color select and dimmable controls are available for you to switch between different modes for different phases of growth. You can choose from clone/seedling mode, veg mode and flowering mode.

Advanced Lights Diamond Series XML150 - Off

Advanced Lights Diamond Series XML350 - Off

With dual heat sinks and fans the Diamond Series XML LEDs run cool and can lessen the need for heat ventilation in the growing area. You can also fit more of them into your grow room with the functionality that allows you to daisy chain up to 4 units from the same power supply.

If you are looking to totally maximize production from a limited space then this could be the light for you. The Diamond Series XML LEDs deliver more power than most of the competition with light across the spectrum to meet all your plants needs.

Advanced Lights Diamond Series XML350 - 10W LED Chip

Advanced Lights Diamond Series XML350 Back

Spectrum

Each of the units emits light in 11 different wavelengths. This is not full spectrum but still good quality light.

      • 760nm
      • 740nm
      • 720nm
      • 660nm
      • 630nm
      • 615nm-480nm
      • 460nm
      • 440nm
      • 415nm
      • 380nm

Total LEDs

      • Diamond Series XML150 – 68 (4 x 10W and 64 X 3W)
      • Diamond Series XML350 – 154 (10 x 10W and 144 X 3W)

Actual Draw or True Draw

Diamond Series XML150 – “Amps @ 110 Volts quoted at 1.6 and 220 volts @ 0.5.” Therefore @ 110 Volts, 1.6A = 176Watts or 76% of potential. Quite high, maybe their quoted amperage is incorrect.

Diamond Series XML350 – No Amps given. They claim 330 Watts which sounds about right = 330Watts or 62% of potential.

LED Brands

      • Diamond Series XML150 – 4 X Cree 10W XML LEDs and 64 X Bridgelux Blue and White LEDS
      • Diamond Series XML350 – 10 X Cree 10W XML LEDs and 144 X Bridgelux Blue and White LEDS

Driver Brands

Advanced LED drivers

Lens

Precision 90 Degree XML Collimator Lenses

Thermal Management

Dual heat sinks with fans and honeycomb fan covers with dust filters.

Build Quality

The Diamond Series XML lights look solid in metal housings with diamond vents for increased airflow.

      • Diamond Series XML150 – 12.5” X 12.5” X 3” – weight: 9lb
      • Diamond Series XML350 – 19” X 19” X 3” – weight: 14lb

Footprint

Total Coverage

      • Diamond Series XML150 – 3’ X 3’
      • Diamond Series XML350 – 4’6” X 4’6”

Core Coverage

      • Diamond Series XML150 – 2’6” X 2’6”
      • Diamond Series XML350 – 4’ X 4’

From

Advanced Lights of USA

Warranty

3 Year Warranty

Money Back Offer

90 Days No Hassle Money Back Guarantee

Area 51 LED

Model: XGS-190

For those who prefer an all in one solution that best simulates natural sunlight Area 51 offer the XGS-190 LED grow light.

This switchable 100W/195W Cree XTE Warm White LED set comes with finned aluminum heat sinks plus two ball bearing fans and will operate on any voltage from 100 to 240 V without the need for providing any special drivers or cords to run on different voltages. These are the specific LEDs they use XTEAWT-02-0000-00000BFF6.

Area 51 LED Grow Light XGS-190

Unlike some LED units the Area 51 does not offer you the ability to switch between different modes that optimize the light frequency depending on your plants’ growth phase. It does however offer 2 power settings that allow you to choose from 100W actual draw and 195W actual draw to adapt the unit to your spatial needs. These two options can also be used to provide gentler lighting to young plants and then to ramp it up during flowering.

The Area 51 XGS-190 LED Grow Light is designed to allow you to daisy chain up to four lights from a single power source (check your circuit breaker) by simply connecting them in series.

Each Area 51 XGS-190 comes with adjustable ratchet hangers and provides high energy Warm White lighting that is suitable for growing plants throughout the grow cycle. It seems like a good option with a reasonable price for providing good quality light that your plants will surely like.

Spectrum

Only mentioned in terms of the LED “Cree 5w warm white 3700k” here is the datasheet from CREE. “The XT-E LED delivers up to 148 lumens and 148 lumens per watt in cool white (6000 K) or up to 114 lumens and 114 lumens per watt in warm white (3000 K), both at 350 mA, 85°C”.

Total LEDs

72 LEDs x 5W = 360W potential

Actual Draw

Switchable between 100W or 195W, as stated by Area51, these sound like reasonable actual Watts given a potential of 360W.

LED Brands

Cree XTE Warm White 3750k. See spectrum above.

Driver Brands

Not Known

Thermal Management

Aluminum Heat Sinks with 2 X 120mm ball bearing fans. Each fan operates at 73cfm and makes an almost silent 10dB. Operating temperature: 77F – 86F / 25C – 30C (generally operates a few degrees higher than ambient temps) They recommend that you keep your grow room between 70°F and 77°F.

Build Quality

The Area 51 XGS-190 LED is robustly housed in a vented aluminum casing. It measures 12” X 18” X 2.75” (30cm X 45cm X 7cm).

Footprint

The recommended growing area for the Area 51 XGS-190 LED is:

  • Veg 100W – 24” X 30” (61cm X 76cm)
  • Veg 195W – 39” X 39” (99cm X 99cm)
  • Flowering 195W – 30” X 30” (76cm X 76cm)

From

Area 51 LED of USA

Warranty

Limited Lifetime Warranty

Rapid LED

Model: Dual Aurora Puck Kit

The Dual Aurora Puck Kit from Rapid LED is a self assembly LED array that allows you to build your LED lighting unit to your own exact requirements.

Aurora-Double-Puck-Kit_with-LDD-H_Drivers

If you have some experience of Electronics, LEDs and series circuits then self assembly is a great way to save costs, building yourself a top of the range LED grow light without having to pay top dollar for pre-assembled units.

For simulating daylight the Dual Aurora Puck Kit (Dimmable) seems a good solution as it presents 4 channels of control and 7 colors of LEDs: 4 XP-G cool white; 4 XT-E royal blue; 4 XP-E blue; 4 Violet UV; 2 XP-E Green; 2 XP-E Red; and 1 XP-E Red-Orange. Apart from good mimicking of natural daylight, thus covering the photosynthetic spectrum, this set allows you to create different combinations of light colors which then can be used to stimulate marijuana’s vegetative or reproductive growth (flowering) requirements, depending on your interests.

The 4 channel arrangements are:

  • Channel 1 (1000mA max) – 4 royal blue + 3 blue;
  • Channel 2 (700mA max) – 2 green + 1 blue + 2 red + 1 red-orange;
  • Channel 3 (1500mA max) – 4 cool white:
  • Channel 4 (700mA max) – 4 Violet UV.

The Dual Aurora Puck Kit (Dimmable) comes with current and fan adapters and dimming accessories. There are also clear and thoroughly explained instructions which allow you to create, adapt and experiment on different environmental conditions.

Total LEDs

42 LEDs

Actual Draw

We asked Rapid LED directly and they stated:

We emailed them about our review.

Hi Todd,

Thank you for thinking of us! The theoretical wattage draw of the Aurora Puck is about 65w. However, this is when running each channel at exactly the max current as specified on our site here: http://www.rapidled.com/aurora-puck/

Regards

Mike

Hi Todd,

That is correct, it’s just a calculator that multiples current (mA) times volts to find watts.

a) We provide a maximum current for each string here: http://www.rapidled.com/aurora-puck/

The actual current you’ll use is really up to you and your tank/needs, some people will run at 100% of our recommendations, most are at 70-90%, but I’ve seen some go as low as 30-40%.

b) The 110V isn’t the voltage you’re using to calculate wattage, that’s simply the input AC voltage to the driver. The driver then converts that to DC voltage (if you’re using a LDD driver the power supply would do the converting for you but it’s essentially the same thing). You’re going to look for the DC voltage draw of each LED, which will vary depending on the current. For example, here’s the datasheet for our XT-E royal blue LED:

Look at page 8 of the datasheet and you’ll see a chart showing you the relationship between current and voltage. For example, if you’re running the LED at 1000mA (the max we suggest for channel 1 on the puck) the LED will draw about 3.2V. Thus, you will multiple 3.2V x 1.0A to get 3.2 watts. This is the true wattage draw of the royal blue LED at 1000mA (1A). You simply add up the wattage draw of each LED on the puck to find the total draw for the puck.

c) Each LED will output a different wavelength. I don’t have a spectral graph of the output on the entire puck, but if you click on each LED’s product page (linked at the top of the puck product page) we’ll tell you the wavelength of each LED. For example, the royal blue is 450-465nm, the blue is 465-485nm, etc. The only one that won’t have a nm is the white LED as those are full spectrum and thus are always rated in Kelvin temperature (the higher the temperature the cooler the LED).

Hope that helps clear things up, if you have any other questions please feel free to let me know.

Regards,

Mike

Hi Sam

Thanks for your reply.

I am unsure of the draw and electronics so I need some help here as normally I would work out the true wattage when I have the Voltage and the Amps (current) using thishttp://www.supercircuits.com/resources/tools/volts-watts-amps-converter . Please assume I have just bought one of your kits, which comes with two pucks, what would the be the answers to the following assuming I am an average home grower?

a) What current/Amps should I use?

b) What would that current draw in Watts assuming 110 Volts for the entire kit combined, total of two pucks?

c) Also, what is the spectrum of the output in nanometres?

Thanks in advance for your time.

Todd

LED Brands and Spectrum

Cree LEDs. Rapid LED state: For full spectrum color lovers this is the ideal puck! You’ll get 4 channels of control and 7 colors of LEDs! All LEDs are from our regular stock and each puck contains 4 XP-G2 cool white, 4 XT-E royal blue, 4 XP-E blue, 4 Violet UV, 2 XP-E Green, 2 XP-E Red, and 1 XP-E Red-Orange.

Unit has 2 pucks (arrays). We believe this is correct. Each Puck contains:

  • 4 XP-G cool white @ 5W – color temperature 5,000K-8,300K;
  • 4 XT-E royal blue – Wavelength 450-465nm; Is this 1.8W?
  • 4 XP-E blue @ 3W – Wavelength 465-485nm; Is this 1.2W?
  • 4 Violet UV; Wavelength 410nm – 420nm Is this 0.84W?
  • 2 XP-E Green @ 3W – Wavelength 520-535nm;
  • 2 XP-E Red – Wavelength 620-630nm; Is this 0.84W?
  • 1 XP-E Red-Orange – Wavelength 610-620nm. Is this 0.84W?

Aurora-Puck-with-LEDs

XP-G-5W-LED

Driver Brand

Choose from:

  • 2 x Mean Well ELN-60-48D and 2 x Mean Well ELN-60-27D or;
  • 2 x Mean Well ELN-60-48P drivers and 2 x Mean Well ELN-60-27P or;
  • 2 x LDD-700H drivers + 2 x LDD-1000H drivers + LDD-H-4 board + SE-350-48 power supply.

Mean-Well-ELN-60-48D-Dimmable-Driver

Lens

All LEDs come with appropriate lenses to suit.

Thermal Management

Temperature is managed by black anodyzed heat sinks with fan. Choose from:

  • 1 X 6” X 20” Heat Sink or;
  • 2 X 6” X 10” Heat Sink.

Heat sinks have splash guards for aquarium use and come either drilled or not, depending on your choice.

Anodyzed-Heat-Sink

Each Heatsink comes with 1 X 92mm Vantec Stealth Fan (model SF9225L).

  • 80% quieter than standard case fans;
  • Suitable for 1.4” or 6” heat sink;
  • 92 x 92 x 25mm (3.62″ x 3.62″ x 1″);
  • 12V DC power;
  • Runs at 1750 RPM;
  • Moves 28 CFM (cubic feet per minute) of air;
  • 20 dBA (equivalent to whispering);

92mm-Vantec-Stealth-Fan

Build Quality

The Dual Aurora Puck Kit is a self assemble kit that contains high quality products from leading brands.

From

The Dual Aurura Puck Kit is supplied by Rapid LED of Burlingame, California.

Warranty

Rapid LED offers the following Return Policy:

If defective, replacement will be provided if we are notified within 14 days. Return shipping is the responsibility of the buyer. Replacement shipping is on us. Please note that once LEDs have been soldered, they are no longer under warranty. Due to the nature of DIY projects, we must be notified of any defective LEDs PRIOR to soldering or use of any kind.

For all other returns, product must be brand new and in original shipping box and sent back to us within 14 days. We’ll refund you back the cost of the order, minus what we paid to ship the order to you.

Black Diamond LED

Models: Black Diamond & Double Black Diamond

There are two size options in the Black Diamond range from Lil’Tomato Concepts.

  • Black Diamond LED Light V2, and
  • Double Black Diamond LED Light V2

Black-Diamond-LED-Grow-Light

Each offers high output LEDs that run at 5500/73 K/CRI. The smaller Black Diamond has 48 LEDs whereas the larger Double Black Diamond has 96.

Double-Black-Diamond-LED-Gr

Lil’ Tomato advertize their lights as operating at 115 W and 228 W potential.

As with XGS-190 LED Grow Light, both these Black Diamond LED Light V2 sets operate over a voltage range, here from 110 to 240 V. To work out the actual draw for you, use this handy calculator and enter your home voltage in the top box and either 0.89 (for the Black Diamond) or 1.89 (for the Double Black Diamond) in the bottom box. The answer in the middle box is your actual power draw.

Lil Tomato go on to suggest an input of 120 Volts at 0.89 Amps which equates to 107 Watts true draw. The Double @ 1.89 Amps and 120 Volts equates to 227W. This is because LEDs never run at maximum power all the time. This would be like always driving your car at full revs; it would soon wear out!

Overall, and understandably, these sets are a bit more expensive than the XGS-190 LED Grow Light set. However, Lil’Tomato Concepts come with proven experience in the field of agricultural lighting and offer you a 5 year warranty period.

Spectrum

  • 5,500–6,000 K Vertical daylight is the concept there, they do not mention nanometers however this sounds like good white broad spectrum light.

Total LEDs

  • Black Diamond – 48 LEDs
  • Double Black Diamond – 96 LEDs

Actual Draw in Watts

  • Black Diamond – 107 Watts
  • Double Black Diamond – 227 Watts

Total Lumen Output

  • Black Diamond – 11810 lm
  • Double Black Diamond – 21300 lm

LED Brands

Philips Lumileds – 5500/73 K/CRI

Driver Brands

Not Known

Lens

All LEDs come with 900 angle lenses.

Thermal Management

Not Known

Build Quality

The Black Diamond LED V2 units come on strips set in a robust metal housing. The spacious desing should help with heat management.

  • Black Diamond – 17.5” X 17.3” X 5.13” – weight: 13lb
  • Double Black Diamond – 17.5” X 37.03” X 5.13” – weight: 21lb

Footprint

Optimal Growing Area

  • Black Diamond – 48” X 48”
  • Double Black Diamond – 48” X 72”

From

Lil’ Tomato Concepts (LTC) of Sun Valley, California, USA

Warranty

5 Years

Black Dog

Model: BD360-U LED

The Black Dog LED Universal Series is a solidly constructed LED grow light series that relies on proven 5W LED technology to deliver powerful PAR lighting to your plants.

Black-Dog-LED-BD360-U-LED-Grow-Light

This model, The BD360-U, is a mid range model that is suitable for home growers with a 4’ square growing area. It more than adequately replaces a 400W HID and features 140 5W single chip LEDS.

Black Dog Universal Series LEDs use the trademarked ‘Phyto-Genesis-Spectrum’. This is the result of extensive research and uses 15 different colored LEDs to create a spectrum that closely mimics the graph below which shows the rate of light absorption of different plant pigments.

Photosynthetic-Absorption-Graph

The full spectrum created goes from UV to IR and covers crucial absorption peaks in the red, orange, violet, and blue spectrum. This represents optimum lighting for both flowering and veg. For vegetative growth the light covers a 4’ square and should be hung at 22” from the canopy. Lower the light to 16” for flowering to cover a 3’ square.

Having a square footprint is more efficient than some of the rectangular footprints available and can make for easier grow room planning.

Black-Dog-LED Universal-Series-BD360-U-Footprint

The Black Dog BD360-U LED has a capacity of 700W but only actually draws 340W when running. This prolongs the life of the LEDs and keeps your energy bills low. Extra large heat sinks are used to keep operating temperatures low, allowing you to get your plants closer to the light source.

BD360-U Universal Series LEDs Black Dog LED

Black Dog LED lights enjoy an excellent reputation and the BD360-U is a great buy that comes with proven performance and productivity.

BD360-U-LED-with-hangers-and-cables

Spectrum

Black Dog claim: “BDL’s proprietary full-cycle Phyto-genesis Spectrum™, which eliminates the need for separate vegetative and flowering grow lights”. “Includes multiple wavelengths targeting crucial absorption peaks in the red, orange, violet, and blue spectrum, as well as IR and UV.”

We have not seen any tests outlining spectrum, PAR or nanometers.

Total LEDs

140 X 5W = 700 Watts potential

Actual Draw

Black Dog claim 340W actual draw which is 48% of potential, this is in the ball park of reality. We checked, given the amperage is 2.8-1.4A (@ 120/240v) this equates to 336 Watts true draw, so they are bang on correct.

LED Brands

5W High Output LEDs – no brand name given

Driver Brands

Not Known

Thermal Management

Black Dog use some of the ‘largest heat sinks in the grow light industry’ to keep operating temperatures down. Operating temperature range of -20 to 40 °C. BTU of 1161.

Build Quality

The BD360-U comes in a sturdy black metal frame that is oversized to allow for extra heat dissipation. The side panels are designed with good venting and the unit comes with D rings and adjustable metal ratchet hangers. CE certified and ROHS compliant.

Footprint

The recommended growing area for the BD360-U is:

  • Veg 48” X 48” (121.9 X 121.9)
  • Flowering 36” X 36” (91.4cm X 91.4cm)

From

Black Dog LED of Boulder, Colorado, USA

Warranty

Limited Lifetime Warranty

BML Custom LED

BML offer an array of lights from the SPYDR 1000 and 600 Grow Max Spectrum models to the 600 Start-Max Spectrum.

You can even build your own spectrum lights, find a length from 7” through to 72” and the angle of the beam from 30 ° to 90 °.

DIY-LED-grow-light

To create the best LED combinations that mimic natural daylight for your plants and are suitable for the physical conditions that you have (i.e. space, temperature, humidity), BML offers you a most convenient custom LED tool you can create and see how your own custom made LED spectrum will work.

With reviews from PhD’s at Princeton it is seen as a quality light “In my opinion, BML Horticulture is an ambassador of the LED revolution and is a great partner for plant science!” Paul P. Gaulthier, PhD.

By selecting your preferred fixture length and creating a circuit board with any LEDs (up to 15) of your choice together with choosing the beam angle you want in your fixture, you will have the opportunity to evaluate, experiment and compare many different light conditions and scenarios that you can offer to your marijuana plants.

LED-PAR-comparison

Depending on length, fixtures can have a different number of circuits. These custom made fixtures come with a three year unconditional warranty against defects in workmanship or materials. With the different set of LED colors offered BML you can build an enormous variety of spectrum ranges and built different sets of LEDs specific for different development stages of your plants, e.g. vegetative vs. reproductive growth, according to your own needs. In addition to this most helpful builder and to help you choosing the best LED combinations, BML, bmlcustom.com/custom-led-strip, also offers you a graphical tool where you can analyze and compare the different values of the physiological parameters that matter created by a given LED combination. For example, you can see the wavelength (color) predominance and the resulting PAR (Photosynthetically Active Radiation) of a given LED combination and fixture that you chose. This way you can see which region of the light spectrum is most represented and evaluate which developmental stage of your plants are you favoring most, i.e. vegetative vs. reproductive growth.

Spectrum

SPYDR 600 GROW-MAX Spectrum – They state it covers PAR >> “Spectrum is the perfect choice if you need to take young plants to maturity with maximum vegetative growth and flowering capacity.” “When the bars are centered in the fixture to achieve max PAR levels, you can expect PPFD readings of up to 2100 mmol/m2/s at a 12″ mounting height.”

SPYDR-600-GROW-MAX-SPECTRUM

LED Selection

(67%) 660nm Deep Red,

(13%) 625nm Red,

(13%) 6500K Cool White

(7%) 450nm Royal Blue

Total LEDs

270 x 3W Osram LEDs. Total 810 Watts potential.

Actual Draw

Input voltage 90-305 VAC. They state these are under driven, as they should be and 333 Watts actual draw.

LED Brands

OSRAM

Driver Brands

Thermally protected MEAN WELL driver. The SPYDR is powered by a single, driver that consumes 333 watts.

Thermal Management

U.S. made, industrial quality, fan-free LED fixture.

Build Quality

Top quality LEDs protected by heavy spray-proof aluminum case and tough, easy to clean polycarbonate cover.

Footprint

Coverage over a 4’x4′ grow area

Dimensions

Fixture weight: 23 lbs / 10.4 kg. 36” x 36” x 4.5” thick

From

Built-to-Order in the USA

Warranty

Three Year Limited Warranty. CE certified to Low Voltage and EMC safety directives. ROHS compliant.

Lil’Tomatoes

Model: Cool Diamond & Diamond II

Cool Diamond LED Lights from Lil’Tomato Concepts are built on the same sturdy framework as their Black Diamond LED sets. As with Black Diamond they offer two different sizes.

  • Cool Diamond LED Grow Light
  • Cool Diamond LED Grow Light II

Cool-Diamond-LED-Grow-Light

Although of the same size as the Black Diamond sets, Cool Diamond LEDs squeeze more power out of the same area, providing 64 and 128 LEDs respectively. More light energy into your system means more weed out! As with other LTC products, the Cool Diamond LED lights also operate over a voltage range, here from 110V to 240V.

Cool Diamond II LED Grow Light

The specs on the Cool Diamond show an actual draw of 147W and 300W respectively @ 120 Volts and 1.23 A and 2.5A respectively.

If your domestic voltage is 110V then this equates to an actual power draw of around 135W and 275W respectively. The reason for the difference in this is that the LEDs do not continually run at full capacity as that would drastically shorten their life time. What this means to you is even lower utility bills than expected.

If you live somewhere with voltage other than 110V then you can use this simple calculator to work out what the actual power draw of the Cool Diamond LED lights would be for you. Just enter your domestic power supply in the top box, then enter either 1.23 for the Cool Diamond, or 2.5 for the Cool Diamond II, in the bottom box. The result in the middle box will be your actual power draw.

The Cool Diamond LED lights are a step up from the Black Diamond sets in price, but they provide much more power to your grow, enabling you to increase output for the same sized growing area. Basically it means fatter buds and bigger yields.

Spectrum

5,500–6,000 K Vertical daylight is the concept there, they do not mention nanometers however this sounds like good white broad spectrum light.

Total LEDs

  • Cool Diamond – 64
  • Cool Diamond II – 128

Actual Draw

  • Cool Diamond – 135W
  • Cool Diamond II – 275W

Total Lumen Output

  • Cool Diamond – 14821 lm
  • Cool Diamond II – 29329 lm

LED Brands

    • Cool Diamond – Philips Lumileds – 5500/74 K/CRI
    • Cool Diamond II – Philips Lumileds – 5500/75 K/CRI

Driver Brands

Not Known

Lens

All LEDs come with 900 angle lenses.

Thermal Management

Not Known

Build Quality

The Black Diamond LED V2 units come on strips set in a robust metal housing. The spacious desing should help with heat management. Sizes are:

      • Cool Diamond – 17.5” X 17.3” X 5.13” – weight: 14lb
      • Cool Diamond II – 17.5” X 37.03” X 5.13” – weight: 23lb

Footprint

      • Cool Diamond – 48” X 48”
      • Cool Diamond II – 148” X 72”

From

Lil’ Tomato Concepts (LTC) of Sun Valley, California, USA

Warranty

5 Years

Growblu

Model: Apollo 240 X 3W

The Apollo 240 X 3W LED grow light, from Growblu of USA, is a high quality full spectrum grow light that is rated to replace a 1000W HID.

Growblu-Apollo-240X3W-LED-Grow-Light

Growblu-Apollo-240X3W-LED-Lenses

The Apollo 240X3W uses 240 3W LEDs clustered into 16 pods of 15 individual LEDs. This amounts to 720W of LED power, although Growblu state the actual power draw of this light is only around 500W.

We calculated the actual draw using this calculator and, using the 5.4 amps stated by Growblu, found the actual draw at 120V to be 648W.

Either way, it would lower the running costs of the 1000W HID it replaces, as well as significantly lowering the high operating temperatures that are associated with HIDs.

To keep operating temperatures down, the Apollo 240 X 3W grow light uses aluminum PCB modules and a 2 cm premium aluminum heat sink. For added cooling there are also 8, quiet, high output cooling fans. All of this keeps operating temperatures at the canopy (12” from lens) at just 79oF, creating minimal need for you to supply extra ventilation for cooling.

Growblu-Apollo-240X3W-Cooling-System

Growblu-Apollo-240X3W-LED-Grow-Light-Heat-Sinks

The Apollo 240X3W uses a selection of top quality 3W LED chips from Bridgelux and Epistar to create their own, proprietary full spectrum. The actual breakdown of the spectrum is not available. However it is suitable for all your plants’ needs from germination, thru veg, to harvest. Each LED is fitted with a primary 90o lens and a secondary 60o focus lens for maximum light penetration.

Growblu-Apollo-240X3W-Secondary-Focus-Lens

The Apollo has an independent on board monitoring system that keeps an eye on how the LED grow light is performing. Any malfunctions with the lights are indicated by flashing or extinguished lights on the side of the casing. This allows you to address any problems that may occur immediately.

Growblu-Apollo-240X3W-Monitoring-System

The Apollo 240 X 3W is a powerful light. Growblu give the optimal footprint as 4’ X 4’. The long rectangular shape of the light might be awkward for some tents or smaller rooms. However for larger commercial grows, several of these side by side would supply excellent coverage.

The Apollo performs equally well at either110V or 240V. Growblu will even supply the unit with the correct plug for the country that you live in. We contacted them for information for this page and they responded quickly to all our questions

Spectrum

They state “Proprietary Groblu full spectrum” with no other details.

PAR-1300-1ft, 700-2ft, 430-3ft

Average LUX 70,000-1ft, 32,000-2ft, 18,000-3ft

Total LEDs

240 X 3W = 720 LEDs within 16 arrays. Potential of 720 Watts

Actual Draw

We understand it is around 500W. An emails from them stated “Amps drawn by a 240V is 5.4.”

LED Brands

Bridgelux and Epistar

Driver Brands

Not Known

Lens

90o Primary Lenses + 60o Focus Lenses

Thermal Management

PCB modules 2cm aluminum heat sinks + 8 cooling fans. Average canopy temperature 79°F @ 1FT. Average lens temperature 88°F.

Build Quality

Good and solid. Hanging wires supplied.

Size

37″ X 11.5″ X 3″ (94cm X 29.2cm X 7.6cm)

Weight

34lb

Footprint

Optimal Growing Area – 4ft X 4ft. A larger area would be appropriate for seedlings or vegetative plants.

Recommended Grow Height

24-36″ Germinating

12-18″ Flowering

From

Growblu, California, USA

Warranty

3 Year warranty on parts and repairs with one time free replacement

Money Back Offer

30 Days No Hassle Money Back Guarantee

Advanced LED Grow

Model: Grow Sun 320P

The Grow Sun 320P LED grow light is one of the 5g Grow Sun Series. It offers single 20W LEDs with 12 multi-chips emitting in 12 bandwidths of light to give you great spectrum coverage for your plants.

The Grow Sun 320P features 16 of these 20W LEDs and is shipped in directly from the manufacturers in China and available from Advanced LED Grow of USA. Chinese LEDs can sometimes get a bad rep but there are a number of online reviews backing up the efficacy of this unit.

Grow-Sun-320P-LED-Grow-Light

The Grow Sun 320P is designed to be comparable with a 400W HID. Side by side tests show an increase in yield of around 20% and a corresponding drop in energy use of around 30% with the actual draw of the Grow Sun 320P being around 280W on full bloom.

Grow Sun state that their bandwidths run from 400nm to 760nm plus white. Optical lenses are used to blend the light into the full spectrum but Grow Sun do not stipulate the individual chip frequencies. An acrylic sheet with reflective covering makes best use of the light, focusing it directly onto the plant canopy.

GrowSun 320P LED Grow Light- Exploded Diagram

The Grow Sun 320P comes with an advanced wireless remote control with timer and the choice of three channels to meet the requirements of different stages of plant growth; seedling, veg and flower. The intensity of light with each channel is also adjustable from 10% to 100%. Each 20W LED comes with a solder free design that makes changes individual chips easy.

Grow-Sun-320P-Remote-Control

A built in safety feature lowers the light intensity of the GS320P should overheating occur. A trip switch is also fitted to cut off power in the event of an accident.

Grow-Sun-320P-LED-Grow-Light-On

With hanging kit included, a one year full warranty, free tracked FEDEX shipping and the possibility of paying with Paypal, the GS 320P is worth a look at. We contacted Advanced LED Grow and found them very communicative and easy to deal with.

Check out this Youtube clip of the Grow Sun 320P grow light in action.

Spectrum

12 bans covering 400 – 760nm. We are sure there will be gaps in that spectrum but still 12 is a good number and close to full spectrum.

Total LEDs

16 X 20W = 320 Watt potential. These are multi chip LEDs with multi spectra in them.

Actual Draw

280W is what they quote, there is no discussion on Amps. We think that 280 is too high and not correct as that is 87% of potential, so either the LEDs will burn out (1 year warranty) or they are driving them at far less than this actual draw, maybe 160 to 180Watts.

Email from Advanced LED Grow “The actual power draw of the Grow Sun 320P is 280W. Attached is a brochure on the unit with a light source test report that shows the distribution of the LED light.”

LED Brands

Not known

Lens

Sunface Optical Lenses

Driver Brands

Mean Well

Thermal Management

Fan cooled by built in fans. Side vents only.

Build Quality

The Grow Sun 320P is an attractive unit with gold effect aluminum casing for those who like a bit of bling with their grow.

Footprint

Grow Sun give us the levels of coverage for the 320P at varying heights above the canopy. Obviously you would lose a great deal of the intensity at the higher levels and only be able to flower effectively at the lower levels.

Height from canopy Footprint Height from canopy Footprint
8” 28” X 28” 20cm 70cm X 70m
20” 51” X 51” 50cm 130cm X 130cm
39” 90” X 90” 100cm 230cm X 230cm
59” 122” X 122” 150cm 310cm X 310cm
78” 165” X 165” 200cm 420cm X 420cm

From

China via Advanced Lights of USA

Warranty

1 Year Warranty

Bonsai Hero

Model: Hans Panel 80 Watt

In the same line as Dual Aurora Puck Kit (Dimmable) and BML LED combinations, there is a brand new 80 Watt LED panel and upgraded version of the famous Hans-panel from Bonsai Hero.

Hans-Panel-Bonsai-Hero-80W-LED

Bonsai Hero offer the 65W and 80W models. We concentrate on the 80W model here.

Bonsai Hero’s Hans Panel combines 4 Cree XBD Royal Blue, 17 Cree XBD 701 Red, 2 Cree XBD White and 10 Osram LH-CPDP Deep Red Rebel LEDs. The difference and main advantage of the Hans Panel is that this LED panel is optimized for a higher current and delivers 15% more light than the standard 65 Watt Hans-panel. However, both versions are among the very best LED color combinations on the market today.

The Hans Panel allows you to optimize the spectrum and the amount of light you deliver at different developmental stages of your plants’ growth. This way you can provide optimum lighting conditions whether you are growing seedlings or cuttings, vegetative growth or flowering.

  • Growth Phase – Seedlings and clones. Power draw = 38W
  • Early Flowering – Mothers and first weeks of flowering. Power draw = 60W
  • Full Flowering – Thru to harvest. Power draw = 80W

Hans-Panel-Bonsai-Hero-Growth-Phase

Hans-Panel-Bonsai-Hero-Early-Flowering

Hans-Panel-Bonsai-Hero-Full-Flowering

Hans Panels have no light losses caused by plastic covers or lenses in front of the LEDs. Patented reflectors are used instead.

The Hans Panel comes with an external, waterproof power supply that doesn’t add any heat to the array. The whole unit operates at a mere 45dB, this almost silent noise output is a must for stealth growers.

Spectrum

There is no mention of actual spectrum but they offer a good selection of LEDs. There are 3 selectable positions;

(1) Seedlings and cuttings;

(2) Mothers and Early weeks of flowering;

(3) Full flowering position. Easily selectable by switch.

Total LEDs

33

Actual Draw

Max 80 Watts quoted which sounds reasonable. No mention of Amps used.

LED Brands

CREE and Osram

  • 4 Cree XBD Royal Blue
  • 17 Cree XBD 701 Red
  • 2 Cree XBD White
  • 10 Osram LH-CPDP Deep Red Rebel LEDs

CREE-XBD-LED-Grow-Light

Driver Brands

Not known. EU, USA or UK power supply included.

Lens

No plastic or glass lenses. System uses patented reflectors instead. Each LED has its own refelctor and measures eiither 106 or 123 degrees.

Thermal Management

Metal core PCB for effective cooling. “Very quiet, only -45 dB at 60 cm, 24″.

Build Quality

The Hans Panel is ‘simple industrial design’ solid constructed and measures 15” X 10” X 1.6” (26cm X 38cm X 4cm).

Footprint

The recommended growing area for the Hans Panel 80W LED is 24” X 28” (60cm X 80cm)

From

The Hans Panel 80W is made by Bonsai Hero of Amsterdam, Netherlands

Warranty

2 Years Warranty

Hydro Grow LED

Model: SOL 6 300W and 600W

Hydro Grow LED from Monroeville, PA., have cemented an excellent reputation for themselves over the past few years for their LED grow lights.

Their SOL Series covers a wide range of needs, from the SOL 1 which is suitable for supplemental lighting or single plant grows, up to the SOL 9 which is equivalent to 750W of HID lighting.

HydroGrowLED-SOL-Series

The SOL Series is based around integrated LEDs that come in the choice of either 50W or 100W. The 50W LEDs contain 32 individual 3W chips whereas the 100W LEDs contain 64.

LED-PCB-SOL-6-LED-Grow-Light-HydroGrowLED

Here we take a look at the mid range SOL 6, a powerful grow light with 6 of the integrated LED units. You can choose the 300W model which operates with the 50W LEDs or the 600W model which runs the 100W LEDs.

HydroGrowLED-SOL6-off

HydroGrowLED-SOL6-marijuana-LED-grow-light

Because LEDs don’t run at full power all of the time the actual power draw of these LEDs is not 300W or 600W respectively. The true actual draw can be calculated by using this handy calculator. Given the amperage supplied by the manufacturer we can calculate that the actual power draw of the SOL 6 is as follows.

SOL 6 Model 110V – Actual draw 220V – Actual draw
SOL 6 300W 275W 286W
SOL 6 600W 539W 396W

The LEDs used by Hydro Grow LED are Top BIN LEDs. Binning is a process that grades individual LEDs according to their brightness. Top BIN LEDs are the best quality LEDs available.

Hydro Grow LED use their own 3rd Generation light spectrum that emits light at 440nm, 470nm, 525nm, 640nm and 660nm. The spectrum breaks down to around 10% blue, 15% green and 75% red.

The SOL 6 is an elegantly designed unit with the 6 integrated LEDs mounted in Fusion reflectors. These Fusion reflectors are patent pending and focus all the light from the LEDs into a concentrated beam. No lenses are used.

HydroGrowLED-SOL6-end-view

HydroGrowLED-SOL6-marijuana-LED-grow-light-top-view

HydroGrowLED-SOL6-marijuana-LED-grow-light

The SOL 6 LED grow light has a future proof modular design that is easily upgradeable should the need arise. Extra units can be daisy chained to a maximum of 1200W. Units are available with 110V or 220V power supplies.

Each LED has a dedicated 80mm dual bearing fan and custom built thin finned heat sinks to keep operating temperatures low.

We contacted Hydro Grow LED for information and found them very helpful and quick to respond. Nice work guys.

Spectrum

They state “tested PAR output matching that of a 600W HPS!” But then mention that it is bands, “440, 470, 525, 640, 660”. So this is not full spectrum.

Email from HydroGrow: “Our 3rd Gen light spectrum was broken down into 10% blue, 15% green and 75% red based on lumen output. I cannot break down the individual wavelengths into their percentages.”

Total LEDs

  • SOL 6 300W – 6 X 50W = 300W potential (192 individual chips)
  • SOL 6 600W – 6 X 100W = 600W potential (384 individual chips)

Actual Draw

  • SOL 6 300W – 275W – 2.5A @ 110V (1.3A @ 220V = 286W)
  • SOL 6 600W – 539W – 4.9A @ 110V (1.8A @ 220V = 396W)

Email from HydroGrow “The 50W LED contains 32 chips in total, while the 100W contains 64. The chips we use are 3W, however it is rare for a colored 3W LED to consume more than 2W of actual power. Likewise we do not drive them at full power as this would create too much heat.”

LED Brands

They mention they use Philips LumiLEDs ‘top bin’. Model numbers. LXM2-PD01-0050 and LXM2-PD01-0040 on their website.

However the email response was different:

Email from HydroGrowLED: “We do not use any LEDs one might typically consider “brand name” such as Cree, Osram, Luxeon, Nichia, etc… The reason for this is that their LEDs test out to produce approximately 1/2 the PAR output per watt of those we use in our products.”

Driver Brands

Generic, 85V – 480V and the email reply stated: “The drivers we use are generic. I believe the power factor is around 92.”

Lens

120° with no lenses, not glass or acrylic lenses, just the back reflector – pat pending Fusion reflector.

Thermal Management

6 X 80mm dual bearing fans and custom, radial, thin finned heat sinks. SOL 6 300W 115° – 125° F and the SOL 6 600W 140° – 155° F. Also mentioned is a built in ‘ballast and fan’.

Build Quality

Solid with modular design for easy maintenance

Footprint

Primary Coverage

  • SOL 6 300W – 3′ x 4′ (92cm x 122cm)
  • SOL 6 600W – 4′ x 5′ (122cm x 152cm)

Supplemental Coverage

  • SOL 6 300W – 12′ x 15′ (3.7m x 4.6m)
  • SOL 6 600W – 15′ x 18′ (4.6m x 5.5m)

*primary coverage based on 12-18″ hanging height above canopy, supplemental coverage based on 6-10′ above canopy.

From

Hydro Grow LED., PA., USA

Warranty

2 Year Warranty

Money Back Offer

90 Days No Hassle Money Back Guarantee

Solid Apollo

Model: Solid Core Titan LED 370W

The Titan 370W LED grow light is the biggest light in the Solar Core line from Solid Apollo of Washington State, USA. It has been designed with the larger scale grower in mind and has a core coverage of 27ft2.

Solid Apollo also offer the Ares LED Grow Light @ 120W and the Midas @280W. We review the Titan @ 370 Watt.

Titan-370W-Grow-Light

The Titan 370W is a good looking, sturdily built, modular high tech light that comes with all the confidence of a 120 day money back offer or 5 year warranty.

Solar-Core-Titan-370W-LED-Grow-Light

The driving force behind the Titan 370W LED comes from the 10 X Full PAR spectrum LED grow lights from the industry renowned Bridgelux. These LEDs are combined with 120o polycarbonate lenses to ensure effective coverage of the whole growing area. Each of the ten light ‘cores’ contains 15 individual 3W Bridgelux LEDs. This makes a total of 150 individual diodes in the following light spectrum:

solar-core-spectrum

  • 10x Infrared 730nm,
  • 10x Deep Red 660-670nm
  • 60x Red 640-660nm
  • 10x Orange-Red 620-630
  • 20x Red 630-640nm
  • 10x Blue 460nm
  • 10x Cobalt blue 430-440nm
  • 10x Violet 410-420nm
  • 10x Warm White full spectrum 3000K

Solar-Core-Titan-370W-Grow-Light-Spectrum

This creates a full light spectrum with extra oomph at the red end, ensuring good coverage of the chlorophyll A and B peaks, the most essential wavelengths for your marijuana plants’ growth.

Solar-Core-Titan-370W-LED-Grow-Light-Results

This Titan 370W LED is designed to replace 800W of HID lighting power and can easily grow up to 15, medium sized marijuana plants. 150 X 3W LEDs actually equals a maximum power of 450W. However, LEDs are never run at maximum capacity as this would just burn them out too quickly. You can calculate the actual power draw of the Titan for yourself by using this calculator. The input current is 2.5amps. At 120V, the actual power draw is 300W. This low power consumption can help you to slash the considerable energy costs of your grow.

Titan-370W-Grow-Light-Lens

Heat management in the Titan 370W comes via 6 whisper quiet 90mm fans and effective side venting. These Bridgelux LEDs are 98% efficient at creating light meaning that the heat created is kept to a minimum anyway.

Titan-370W-Grow-Light-Inside

The Solar Core Titan 370W LED comes with a sophisticated on board LED diagnostics system (LDS). This system constantly monitors your grow light and provides you with an up to date status. Any faults or problems with the system are notified by a flashing light to indicate which individual LED is giving you trouble. Although, with an expected lifespan of 50,000 hours on the LEDs, you shouldn’t be seeing too much of this.

We contacted Solid Apollo whilst gathering information for this article and found them quick to respond and helpful with providing information.

Spectrum

See information above and note the bands here:

  • 730nm
  • 660-670nm
  • 640-660nm
  • 620-630nm
  • 630-640nm
  • 460nm
  • 430-440nm
  • 410-420nm
  • Last is ‘white with temperature of 3000K

Total LEDs

10 Solar Cores with 15 X 3W LEDs =150 Total LEDs

Actual Draw

Around 370W

LED Brand

Bridgelux

Driver Brands

Proprietary drivers

Lens

120o polycarbonate polished lenses

Thermal Management

6 X 90mm built in fans and venting. Working temperature 32-140F.

Build Quality

Sturdily built with modular design for easy maintenance. IP55 rating. CE, RoHs.

Size

24” X 11.14” X 3.4” (60.9cm X 28.3cm X 8.6cm)

Weight

8.03lb

Footprint

Optimal growing area – 27ft2

From

Solid Apollo, Washington, USA

Warranty

5 Year Warranty

Money Back Offer

120 Days no hassle money back guarantee

Super Grow LED

Model: Spectrum King™ + Halo™

Known as one of the Rolls Royce LED grow lights on the market. Super Grow LED offers two models. Our people use them. So do a number of the big Dutch seed companies.

  • SuperGrow LED Halo™
  • SuperGrow LED Spectrum King™

The Halo™ is the smaller of the two and great for small grows and supplemental lighting. The Halo has 28 X 3W LEDs with an actual draw of approximately 25 Watts.

SuperGrowLED-Halo-LED-Grow-Light

The Spectrum King™ is the larger of the two lights and has 150 X 3W LEDs to offer a 450W capacity light with an actual power draw of approximately 250 Watts.

SuperGrowLED-Spectrum-King-LED-Grow-Light

The concept with the Spectrum King™ is that two units, total draw of 500 Watts, would replace your 1,000 Watt HID unit. In the process you would save at least 50% in electricity compared to an HID unit, more if you consider there is no ballast needed and a reduction in HVAC requirements.

SuperGrowLED Spectrum King LED Grow Light - Radiator Fins

Both the Halo™ and the Spectrum King™ offer a full spectrum from 420nm through to 750nm with no gaps or bands missing. Other features include high end heat sinks which require no fans, eliminating noise and further lowering energy bills. The solid state construction is extremely durable and SuperGrow LED back this up with a 5 year warranty.

Both lights have top of the range 45mm (not the cheaper 39mm) Bridgelux and Epistar LEDs with 90° and 120° beam angle PMMS lenses for greater photon delivery. Optimum photon delivery is at 12” and has been measured at 1000μmol.

SuperGrowLED-Halo-LED-Grow-Light-off

SuperGrowLED Spectrum King LED Grow Light - Side View

Both the Spectrum King™ (SK450) and the Halo™ (SGL6) come fitted with US plugs but will work worldwide on different power supplies in different countries. There is no need for transformers, simply buy an international plug adapter and you can use them anywhere in thw world.

The Spectrum King™ and Halo™ from Super Grow LED are high quality grow lights with a great track record. Whether you want some small supplemental lighting or a replacement for your HIDs, SuperGrow LED can supply you with cutting edge LED lighting technology to suit your needs.

Spectrum

True full spectrum no gaps, no bands, 420 nm through to 750 nm right into IR.

Total LEDs

  • Spectrum King™ – 150 X 3W LEDs = 450W potential
  • Halo™ – 28 LEDs X 3W LEDs = 84W potential

Actual Draw

  • Spectrum King™ – 250 Watts (250W / 120VAC @ 2.1A)
  • Halo™ – 25 Watts (25W / 110VAC @ 0.23A)

LED Brands

Bridgelux and Epistar

  • Spectrum King™ – 6th generation Spectrum II™ LEDs using 100 ‘white LEDs’. Individual ‘white’ LEDs are a mix of RGB to supply you with high end color rendering and a full spectrum. The remaining 50 LEDs are a mixture of ‘reds’ for extra power during flowering.
  • Halo™ – 6th generation Spectrum II™ LEDs using ‘white LEDs’. Individual LEDs are a mix of the primary colors RGB to supply you with high end color rendering and full spectrum ‘white’ light.

Driver Brands

Mean Well – Self-protecting constant current power supply,

Lens

  • Spectrum King™ – PMMS 900 Lenses
  • Halo™ – Precision 900 and 1200 Lenses

Thermal Management

Totally fanless heat sinks, thermal bonds and quality metal clad printed circuit boards (MCPCB) keep operating temperatures down. Dead quiet, the ultimate in stealth.

Build Quality

Both models are brilliantly made and well presented.

  • Spectrum King™ – 22” X 14” X 7” Weight – 23lb
  • Halo™ – 9” X 7” X 6” Weight – 4.5lb

Footprint

Veg – Optimum

    • Spectrum King™ – 30 sq ft
    • Halo™ – 5 sq ft

Flowering – Optimum

      • Spectrum King™ – 16 sq ft
      • Halo™ – 3 sq ft

From

SuperGrow LED, USA

Warranty

5 Year Warranty

The Future of LED Grow Lights

The commercial sector is really leading the way with LED grow lighting, making available a huge selection of lighting units. Although this is to be welcomed, the down side of it is that there are also many substandard products available that are not up to scratch and that will not produce the plentiful yields growers have become accustomed to with HIDs. They give the good LED grow lights a bad name.

If you do decide to invest in some LED grow lights it is important that you buy from a reputable source and be sure it’s somewhere that you can ask questions about the spectrum and light intensity of the unit. We can highly recommend working with Super Grow LED, they offer the best full spectrum LED grow lights we have seen anywhere. They are not just resellers, they are the manufacturers, they don’t sell junk, and they designed their products with the benefit of decades of LED lighting experience.

Big yields are obtainable using good LED grow lights noted by some of the leading Dutch growers who have already moved away from HID to purely LED based systems. One thing is for sure though, the technology is here right now and in a world where energy efficiency, heat reduction, space saving and sustainability is vital, LED grow light systems have a bright future for indoor marijuana cultivation.

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From the forum

How to Grow Marijuana Forum - Growing Marijuana Indoors & Hydroponics

81 thoughts on “LED Grow Lights

  1. 630nm
    660nm
    460nm
    420nm
    ir 730nm
    uv

    My lamp has them here, they’re good, cob chip

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    • The Spectrum King from Supergrowled.com is the dogs bollocks. I’m pretty sure they ship to Europe.

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    • brian a light

      look for a company called sun engine by kl energy international it is made in usa in ohio

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  2. anyone help me out here ,from the second you put your feminised seed into soil how long before
    I put my MH on as I was told the MH is better for the plant until its time for flowering,thank all you good people out there ,yes its my first grow as you have guest already lol

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  3. Its just a lot of nonsense Blah-Blah.

    Give us Numbers. How many Lumen per Watts can this Lamps produce?

    I know why you dont say Numbers. Because Growing LED’s normally have aroud 60-80 lm/w when HPS-Lamps have something around 150 lm/w. Just a big LIE to say 200W LED are the same than 1000w HPS.. Its not even tecnically possible as theoretical lm/w for leds is around 260, but not reached yet.

    if you dont belive me open wikipedia and search for “luminous efficacy”

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    • Lmao, have you even used led? I have been using hps for near 17 years and this last year I have fully converted to led, hps is a joke compared to today’s tech. Led will abuse a hps in the right hands, I have done side by side comparisons with two identical tents and same strains, and found a 210 watt actual draw full spectrum led will have a 400 watt dual spectrum hps no probs. I have my room and my strains dialled in and I can achieve 1grm per watt per harvest under the 400watt quite easily, but with the 210watt led I have had upto 1.6-1.8 gram per what with same strains, so that’s near double the gram per watt for half the wattage!! To fully utilise and use the led to its full potential you will have to tweak your growing techniques a touch coming from hps! Once you got it nailed I promise you will not look at another hps again. Yes leds are expensive..but only if you buy expensive rebranded panels, go to the manufacturers yourself save £££’s. Everyone is scared to try new tech but yet still bash led panels just because some one didn’t know how to use them “properly” and gave them bad reviews because they’re yield was low. Most company’s offer 90day money back warranty so why not take advantage and try one out on an auto from seed to harvest and if your not happy simply return it.. Leds run cool so feeding, hanging the light at the right height and growing technique plays a big part in a successful led grow, get these things right and your onto a winner. Peace and stay high!

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      • what exact differences and adjustments , if you dont mind sharing, did you have to make in order to have a better yield using LED. this is my first time hearing such a successful story when converting from HID lighting and I am intrigued

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    • A 200watt “actual power draw” led panel will not out perform a 1000watt hps EVER!! So it is wrong to say it will, an actual 200watt led panel can replace a 400 watt hps. As for lumen output led vs hps hands down hps outputs higher lm/w,,,but with led lumen output is not where the led shines, it’s the par range and full use of the proper light spectrum for the plants. There’s a lot of false info on leds and that is where it fails amongst avid hps growers. I tend to look for panels with the actual wattage half of what hps light I will be replacing. I.e, a 200-250 led to replace a 400hps, a 300-350 led to replace a 600hps, and 500-600 to replace a 1000hps. But bare in mind it’s actual power draw that you should look at and not total power. I made a mistake first time round and brought a 90 watt led to replace a 250 hps and what a mistake,, the UFO with a killawatt meter rated 30-40watts! No way was that going to out perform a 200watt hps. So I replaced the UFO with a true 200 watt led and the led did INFACT out perform my 250watt hps and nearing the yields of something like a 400watt hps with half the power usage. This is when I knew that led was the way forward with cannabis growing. Savings of roughly half of what I would pay on a equivalent hps grow for a more potent and higher yield. It’s a no brainer. Having said that i will never pay 1000’s for a led panel like some do and find that their panel is actually a rebranded Chinese panel available for a quarter of the price. I myself use a mars II 700watt (370watt real power) and a mars II 900watt (440watt real power) and replaced my 600 watt hps and 1000 watt hps with these. I have done 6 runs now with the leds and I am very very pleased. I now have cooler rooms, healthier plants, less noise, and the biggest benefit is less electric usage! I practically watched my electricity usage drop to more than half of what I was using before and this was through my electricity suppliers usage graph. For me personally I will never use hps again, I am practically invisible to the police and electric companies as I have no large electricity spikes and also no heat signatures so I cannot be detected with any heat seeking/infrared technologies that the police/criminals are using. Be safe, keep electric usage down, use carbon filters when possible, keep grow rooms cool, use leds and most importantly keep your mouth shut!! Oh yes, the mars II panels I’m using are INFACT generic versions of the famous “black dog led” they just rebranded them and whacked on hefty price tag. Mars II leds are brilliant for the price and what I’ve witnessed them do was worth every penny. Give these a try before anything else as they are reasonably priced and do perform well. Good luck with the search for your led,

      I hope oneday everyone will convert and grow green, greener!!

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    • First off, some definitions.

      WATTS : tells you how much electricity a light is using, not if it is used efficiently to make a lot of light. It mostly tells you how much you will pay to run the thing.

      LUMENS: the LUMEN it is the SI unit used for the derived unit of luminous flux. This is (in normal english) a measure of the total “amount” of visible light emitted by a source. It tells you nothing about the spectrum other than it is visible light, and nothing about how much light falls in a given area either. Iy is mostly used to help light makers produce lights that human eyes can see by. Lumen #s are fairly useless for plants.

      LUX : lux is just lumens per square meter. More accurately, Lux is the “SI” unit for illuminance. “Illuminance” which is is a measure of how much luminous flux (lumens) is spread over a given area.

      AND THEN THERE IS “PAR”!!!!

      PAR tells us how much light **that a plant can ACTUALLY use** comes from a given light source. However PAR does not tell you how much of each piece of ‘growth spectrum’ a given light produces. This is why good lights show a graph of their spectrum.

      *** ABOUT PHOTOSYNTHESIS AND LIGHT ***

      Here is a graphs of the light spectrum that is used by “Chlorophyll A” and “Chlorophyll B” in photosynthesis.

      http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Chlorofilab.svg/709px-Chlorofilab.svg.png

      And here are the other compounds that can be involved

      http://plantphotonics.com/images/graph3.jpg

      Note the two types of Chlorophyll (expressed as two lines) in that first image. Note also that neither Chlorophyll uses green light worth crap!

      They have a strong affinity for red and blue light (and even some orange). There are other compounds involved involved too and there is a lot of debate about them. They might help to govern plant growth stages. If you are eating your plants for cancer fighting you probably want to stimulate them too.

      Some light manufacturers believe that MJ does indeed need to be able to stimulate ALL of the possible the non-chlorophyll (carotenoid) related receptors that might exist in a plant. Other disagree as to this being important. Some folks say that plant growth stages are regulated by these other substances.

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  4. Hello have a room that is 117 cm wide long about 2 meters high, has 20 plants and 1600 w LED 3w how big the room should I have from the plants? hr one exrta lamp, will the necklace if I put it in with?

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  5. I am a firm believer in LEDs. First off Im a Legal med user/grower in WA State which also just made it legal for EVERYONE over 21 for recreational… anyways heres my set up:
    I have an 8x6x8 well insulated room. I use 6 x 90w UFO lights that I bought on ebay about 1 year ago. they were about $120.00 a piece. Im growing 12 plants in hydroponic 2 gallon ebb and flo systen. using advanced hydroponics nutrients. I keep my nutrients at : 1580 ppm, 6.2 ph 50-60 degree solution. Room Temp stays steady at 85 F, 40-60% humidity, I use 2 bags of CO2 mushrooms, 1 wall mount fan comes on/off at random cycles throught 24 hours, on 8 x 15 minute feed/flood cycles per day. I grow afghan kush ryder which is auto flowering, mazar kush and white indica which are both photo sensitive. 3 plants of afghan from seed crack to harvest 85 days. Plants grew to 3 feet tall and I topped them 2 times to make them bush up a bit. total yield 5.8 oz. REALLY NICE DENSE BUDS! Now I know some people are heavily invested in their hps/mh equipment, and people can say what they want about lower yields and less quality, but Im true believer!

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    • something I didnt mention… careful pruning is important to get good light penetration, I remove large fan leaves 3 times during life of plant. Plus it makes triming wicked easy. and while Im sure the argument that the plant needs those leaves can be made, I have found for my set up, I get the best yield, and most importantly to me QUALITY throughout the plant.

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  6. The Super Grow LED grow lights are well-suited to odd and smaller grow areas. The basic formula is 1 gram per watt used, assuming SOG or SCROG grow methods, but I know of several people that are accomplishing a bit more. Of course, you’ll need to use good nutes and adhere to a strict lighting schedule. Temps and water quality are always a factor, as well. So, to answer your question, I would use 2x SGL units and expect 50 grams of dried product, using 50 Watts of power. Add units (and plants) to increase yield. They also suggest pruning your crop to 16 flowering sites per plant for best performance. Good luck!

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  7. Due to having a second lousy summer on the trot, I have decided to try to cultivate a sea of green indoors.
    I have a grow area ready with a floor space of 1.2m x 90cm and need to buy a suitable led lamp to cover this area.
    Could you advise me which lamp would be suited to the task?

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  8. i’ve heard that u can possibly use christmas lights for growing if u have anough of them. Is this true?

    ED: You might need to ask Santa that one. We would guess that they would not have the right light spectrum.

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  9. just wondering if a 15w 225 leds (165pcs red LEDs + 60pcs blue LEDs)would grow one plant?

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    • Hello,
      of course.
      15W LED grow light can cover a small area,
      because the light light intensity is low,
      15W LED grow light is made of 0.05W LEDs,

      There are 1W, 2W, 3W , 5W LED chips on the market now.
      The 3W LEDs is popular now.

      If you want know more information, you can contact me.
      Henry810991@gmail.com

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  10. HEY THERE GOOD LUCK BRO–YOU NEED 50 WATTS OF LEDS PER SQUARE FOOT. THEY HAVE THEM IN 90% WHICH I JUST BOUGHT-I AM ALSO PUTTING ANOTHER ONE ON THE SIDE OF PLANTS TO HELP=I PAID 140 DOLLARS FOR RED-BLUE LEDS SET UP BUT THERES ALOT CHEAPER OUT THERE-STAY WITH 90 AND NOT 12O DEGREES

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  11. Hi everyone
    I’ve always found the tech side of LEDs a bit confusing. And I’m sure that there are a few scoundrels around who exploit this by selling shit quality LED systems to growers who don’t know any better.
    Well, I’ve just found out that this site now has a resident cannabis LED expert who can answer all your LED questions. Check it out by following the link.
    Hope this helps guys.

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  12. hey guys i’m wondering how muck light i’ll need for a 32x32x60 grow box, pref lights that wont rape my wallet..lol

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  13. Well my Budmaster led light is kicking ass with my Northern Lights clones at the moment.

    2 weeks left until harvest and its looking better than usual.

    I really rate led grow lights and have been growing with them for a year now, I had a dorm grow light last year and it was pretty good on my indicas, but they dont compare to these x lens lights for penetration.

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  14. SuperGrow Leds when used with an HPS make a brilliant hybrid system .. I’m using 4 LED with 600W gives me effectively 1000W.

    Advantages ..

    During first 2 weeks of Veg, the 4 LED’s will give more than enough for 4 plants in 40cm pots.

    After this, 400W or 600W HPS can be cut back by several hours (on 18hr, run for middle 10 .. on 12hr, start with 400W for middle 8-10 then 600W after 3 weeks ) The LED is on for the whole photo-period.

    NO low light areas .. because of the design of the Supergrow leds, you can mount 4 (just as they show on their site)and play with the angles until they give complete balanced light.

    You can tilt the LED and place it closer to the plant to give semi side light and greater penetration.

    Over a complete grow, you can get the results of 1000W for less than the running costs of 600W .. and more even quality of bud over a larger area. I’m averaging 4-6 oz per plant with this set-up over BlueBerry — and 3-4 oz per plant under just 600W HPS (identical strain, identical process, nutes and conditions)

    (However, I do grow my clones for 12 weeks under a single LED in small (12cm) pots in a DWC , tie down the laterals and trim heavily to shape them to give me a scrog .. result is 3 weeks only after transplanting before switching to bloom and a shorter bloom cycle)

    In other words, for the way I grow, the SuperGrow LED’s have worked for me with a number of benefits. They may not give the same results for others who do things differently.

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  15. Ghaige, you’re right. Hydroponics is just about the water/feed system. Light is light is light. LEDs will work equally well with soil as they do with hydro.

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  16. Just a quick question, I’ve been doing alot of research on this and I was wondering if LED grow lights were strictly for use for hydroponic setups. I don’t see how it should matter growing in soil vs. water, light is light after all, but any information would be appreciated.

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  17. If you read it again you’ll find the data for your math count…

    “8 X Super Grow LEDs (offer the same light as one 1,000 HPS)
    Total Watts 184 (23 Watts each)
    Total ~650 BTU’s of heat”

    So if you have a 400w HPS it’s needed 40% of 184 in LEDS = 73W… But I recommend you get 100W anymways. ;)

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  18. Craig you don’t need a ballast. That link to the LED grow light shows a 7 band light. Looks like it has gaps in the spectrum, i.e. it isn’t a broad spectrum LED grow light.

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  19. the supergrowled, advertising are half-truths. It only takes nominal 3w LEDs and a aluminum sheet plate or rail plus a pc power supply ballast makes.
    They -supergrowled- ,use a 24v power leds warm white 14 blue 8 and red 6. This is an average spectrum for flowering. But mature.
    Not suitable for growth. It needs more blue. Change warm white LEDs for cold blue.
    I use dimmers for the red channel, and blue, and add more red blue and UV LEDs very expensive, less white. So I control better the spectra. You can add interruptors alone or comibned with the dimmers to turn on led groups.

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  20. i am a first timer at this and need to know wat kind of lights i should use 4 my hydroponic system

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  21. Hey guy. I have been reading on here alot of questions about LED grow lights.
    I have been growing 10 plants with 2 180 watts jumbo illuminator for you that do not know abut this this is a patented product made by a company called prosource worldwide. I bought 1 light to start to first see if I received the product and to see if I liked the results. I was doing some searching and I found that this company do commercial grow sites for medical marijuana in the US and uses a triband systems which consists of 1 watt led and 3 watt led The results that I have received from my plants using these have been great.
    I started off growing a cheese strain we have in Spain I have to say never have cheese like it ! I must say it did take slightly longer to grow that your standard hps set up but the bills where cheaper ! I’m talking 100 s of euros in my case. Also I found the quality throught all the plants I have grown have been to a high standard in yield producing between 700-1000 gm on the critical I have grown for 2 cycles the resin on them is beastly ! If u can resist not smoking and save it all in a jar. Roll that in a blunt ! And take yourselves on our own pineapple express!
    Haha all joking aside I would strong recommend anyone looking in to LED grow lights to look in to this product ! Beware you will find other UFO lighting systems none compare to this the lighting and and the set up is only unique to this supplier. U won’t be disappointed .
    Also check them on on the web very good reviews as they offer 90 days money back and 3 year warranty. So ur always covered. If u need any help feel free reply here and I’ll help as much as I can. Peace !

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  22. There are all kinds of LEDs that cover either the vegging stage of the plant, blue light mainly and others that do well in the flowering, yellows, amber, red and further. Quite a bit here on led lights

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  23. I am trying to get my manufacture to make led lights specially for the growing of Cannabis so that I may import these lights,
    I would like to get more info from growers out there about the LED lights that they use and see how there production went.
    I do know that the LED light should be around 60 deg to 70deg and that the wider they are the less light the plant gets, this is specially after the transplant.
    I know that two much red from the light will make the stalk grow thicker and lose it on the leaves, I also know that the blue concentration is on the leaves to grow.
    what I do not know is what color concentration of lighting do you need to be compatible for the plant to grow at its best???
    I have read that a 90watt LED will be great to cover 2 square foot in growing which I considered this seems small,
    I am at a loss what to try to have made, my manufacture has informed me that they will make any thing I want, so the more info on specifications people tell me the more I can pass on.
    some people might say that this could not happen with manufactures bending over backwards to help, I will ease your mind and say this, this particular manufacture will do as i ask and has a proven track record with me for two years and also considers I am a good customer as my orders are normally by the container load.

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    • No problem for the led lights . we are manufacturer can do customized . we’d to communicate with you for the infornation of led growing.

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  24. Actually, that is a myth. A LED can indeed burn a plant if too close. However, to also answer what LED system to buy, I finally settled on the one from 357magled.com and that is after doing over 6 months of researching and paying close attention to their reviews.
    There are many LED companies out there that claim their product is the best, but after compiling my own database on my computer the one that actually took the lead in the most positive reviews was actually designed by a medical marijuana grower that spent over 5 years of testing their LEDs and seeing what combination yields the best results.
    The only drawback that I could see was because this company is located outside of the United States some banks like to make this company look like they’re charging you a second time for roughly $23 to 36.00 on your account, when its actually your bank charging you for sending money outside of the US for the transaction. Most banks won’t refund the additional charge.
    My plants seem to love the LED system much better than the old school system that can leave quite the heat signature.

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  25. for new growers… when you have reached the germination process its time for you to start with your lighting periods, since there are many different periods i will not go into detail for i am not kidding myself or you on the fact that i dont know exactly what is best suited to you as different strains and genetics applie,
    however i know due to vigourus experiance that when dealing with lighting your living situation fully determains what lights and growth sytems are better for you, for first tiome growers i would advise you to stay away form indica and sativa strains and only try a autoflower to ensure that you can keep your shit on the down low, ensure smell and heat under controll before you jump into 10+ plants.
    autoflowering plans are “ruderalis” many strains now have sativa and indica run through the genetics which gives the best of both worlds, take into consideration that autoflowering plands only grow to approximatly 2-3ft at maximum (however strain type applies). always ensure that indoor growers use a carbon filter and ENSURE that your inflow of air is weaker that your extracing of air, this allows all of the air inside of your grow room to pass through the filter instead of being pushed out of the gaps! essential to urban farmers such as myself. peace to all of you and FREE THE WEED

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  26. I have limited space to grow so I am looking into LED’s for my plants light source because i know they can be very close to the plants without harming them due to their low heat. I am wondering if i need a ballast or just simply the LED panels. I am looking this model from http://www.htgsupply.com/Product-7-Band-240w-LED-Grow-Light.asp
    check it out

    so id love to hear from someone whos knows about LED’s

    THANKS !

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  27. hello there! i am new to this and hoping someone could help guide me to step by step instruction?
    cuz i have no idea wat kind of light stuff i need nd shyt.
    nd also i need to know what kind of soil i need nd where i can go out nd buy it?
    also where i can buy a dome container at?
    i have many questions and i would truly appreciate any help!
    :)
    thnx

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  28. um, im kinda new to the whole planting business, so i really need some help, i just put my seed in a wet toilet paper stip and placed it in the dark, when i come to plant it in a vase INDOORS how long does the light need to reflect on it, and how many times a day should i water it, also how long will it take before i can bud it and smoke the buds?

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  29. I want to replace 2 1k light and LED what do you suggest? Also have you seen the kessil led light 350??

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  30. I’m trying to grow 2 indoor plants. & was wondering how many LED lights I would need, what wattage, && what color?? any help?

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  31. hi I am considering doing 4 plants in a grow tent any1 know which led light make, model would be best suited??

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  32. You need 180 x 1watt leds….white 5%, blue 10%, red 85% (including orange 615nm to infrared 735nm)

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  33. Hi
    If is good LED light 300W replace 1KW HID,
    Lot of chip Led light out om the market.
    Some is die 2 year or less.Many saler can.t find 3 month later.
    Or have to shipped back the light to China cost 120$ or more.
    I but my light from Growlightpro.com Is high end light USA designed.
    Have USA based shop for parts and repair.Like the new 7 band 300 watt
    have all the spectrum need my plant .Hope help you .
    Tibor

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  34. Hi all.Just setting up my first grow. Have just bought three seeds but intend to just grow the one plant to begin with. Am looking to set up indoors, have a suitable dark-room, am on a budget so have been scouring ebay for lights. Would the following be any good or am i wasting my time?

    45w Blue Spectrum 6400k CFL grow light lamp bulb
    65w Red Spectrum 2700k CFL grow light lamp bulb

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  35. Have you looked at the Kessil H350 in Magentia and red? THese should work for 4 plants.

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  36. If im looking to grow 10 plants what wattage should i be looking for and what color bulbs should i use.

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  37. Me and my room mate have the capability to grow 20 plants but we know nothing about growing. We have a few friends who do but none know nothing about led grow lights. Where is a reliable source for buyng these lights and how many would be recommended?

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  38. working in a 4x8x8 tent approx 6 plants what would you recomend for led lights needed for this project and is there a brand that is better than others I have been told Penetrator was a quality brand good warranty ? I also wondering the divverence of the smaller ufo type less $$ ? please help thx any tips would be great rickmotors@hotmail.com

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  39. in my opinion, LED or HPS is more better than CFL, MH.but HPS is not energy and money saving. so LED is the best choice for grow lighting. If someone know about more info about LED grow light, please send my E-mail: ct2@changtian.net

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  40. About LED grow light. you know, it is green product with energy saving, long lifespan.As far as i know, 90W or 120W led grow light can replace 150w HPS lamp, 150W LED can replace 400W HPS, 300W can replace 600W HPS, 600W LED can replace 1000W~1200W etc.

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  41. really confused about what kinds of lights to use. I have been told that I cant get good YEILDS if I dont use HID’s. Pease help! Thanks

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  42. i have a couple of seeds and im trying to make them count my room is a little big and now im trying to find the right things to get i really dont know where to start its a red diesel seed heavy sativa and it grows medium height what do i do?

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  43. okay i just found a plant growing outside of my apt so i brought iut inside and its in potting soil and i watered it…..now what do i do about lights????? please help

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  44. oh they have 225 bulbs per panel and i have a chance of getting six

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  45. Hi. I have been looking at setting a grow room up for about 4 plants. i have an opportunity to get some 15 watt led panels. Would these work o.k?

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  46. alieneyecandy

    90w ufo led would do 1 plant very well, just make sure its at least triband and contains 660nm red.

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  47. I want to grow one plant indoors. What wattage should I be looking for and what color bulbs should I be looking for

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  48. Hi a 150 led would cover the 400hps
    I think led is the way to go. Great yeald

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  49. What wattage of LED does one need to replace X wattage of HPS or MH. ie I have a 400 watt HPS I want to replace with LED, what wattage of LED do I need to buy to be equivilent?

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