TOP 25 BEST LED GROW LIGHTS 2019

Best LED Grow Lights for Cannabis 2019

Electric Sky 300 Wideband LED Grow Light

Electric Sky 300 Wideband LED Grow Light Top 25 Best LED Grow Lights

Overview: The most popular grow light for cannabis in America this year by far is the Electric Sky ES300, or 300. Built with the company’s unique wideband LEDs the full spectrum light emitted gives solid canopy penetration combined with the specialized linear optics which allow for wider coverage. The Electric Sky 300 stays cool and operates without fans. Plug-in the Electric Sky 300 grow light and see how this super-bright wideband spectrum works wonders for plants. Read our full ES300 review for more information.

True Power Draw ~300 watts
LED Type GS1 Wideband Spectrum LEDs
PAR Test 840 µmol/(m2s) at 18 inches
Light Coverage 1x ES300 per 21 ft² (2 m²) max

 

 

HLG 550 V2 Quantum Board LED Grow Light

HLG-550 V2 Quantum Board Top 25 Best LED Grow Lights

Overview: Highly efficient “Quantum Boards” coined by Horticulture Lighting Group are the latest hot trend in LED grow lights for cannabis growers. These highly capable lights for growing are made of a high number of unique mid-power LEDs strung together in parallel configurations on a board with a high powered current driver. Quantum board LED grow lights runs cool and spread light uniformly. The HLG 550 V2 touts 1,152 Top-Bin Samsung LM301B LED’s, which produces over 1178 PPF at only 480 watts (avg power draw).

True Power Draw ~480 watts
LED Type Samsung LM301B LEDs
PAR Test 1400 µmol/(m2s) at 18 inches
Light Coverage 1x HLG 550 per 16 ft² (1.5m²)

 

 

G8LED 900 Watt MEGA LED Grow Light

G8LED 900 Watt MEGA LED Veg-Flower Grow Light Good

Overview: Harness the power of intense LED light combined with ultraviolet and infared light wavelengths. The G8LED 900 Watt MEGA LED Grow Light is highly respected in the cannabis community, winning awards such as the 2016 and 2017 “Best LED Grow Light” by HIGH TIMES Magazine and the 2018 Wiki Top Ten #1 LED Grow Light. Suitable for the entire growing process – veg to flower. An efficient and relatively affordable LED grow light for weed.

True Power Draw ~540 watts
LED Type 8-Band + IR & UV, 3W LEDs
PAR Test 1540 µmol/(m2s) at 16 inches
Light Coverage 1x G8LED MEGA per 24 ft² (2.2 m²)

 

 

HLG-300 Quantum Board LED Grow Light

Best Grow Lights - HLG-300 Full-Spectrum Veg-Flower 285W Quantum Board

Overview: The mid-range HLG 300 is a prebuilt quantum board LED grow light made by Horticulture Lighting Group. Enjoy the benefits of quantum board lighting at a reasonable price. Producing a very high PAR output while only pulling 285 watts from the wall, the HLG 300 is a super bright full spectrum LED grow light for veg and flowering. The quantum board LEDs are highly efficient and provide great light spread in the grow room/grow tent.

True Power Draw ~285 watts
LED Type 576pcs Samsung LM561C S6 LEDs
PAR Test 1036 PPFD at 18 inches
Light Coverage 1x HLG 300 per 12 ft² (1.1 m²)

 

 

Advanced Platinum Series P600 LED Grow Light

Advanced Platinum Series P600 LED Grow Light

Overview: The Advanced Platinum Series P600 LED Grow Light features platinum LED bulbs said to have the highest par/lumen output per watt of any grow light. Ultraviolet and infrared light bulbs are incorporated alongside the Bridgelux and CREE LED emitter diodes to create the brand’s signature 12 band full spectrum light. Built-in 90 degree secondary focusing lenses, for penetrating light deep within the plant canopy. The VEG and BLOOM options switch between fine-tuned spectrum wavelengths for the perfect blend of light from seed until harvest.

True Power Draw ~345 watts
LED Type 3 watt LEDs
PAR Test 1160 µmol/(m2s) at 18 inches
Light Coverage 1x P600 per 24 ft² (2.2 m²) max

 

 

Best COB LED Grow Lights

MEIZHI 300W CREE COB LED Grow Light

MEIZHI 300W CREE COB LED Plant Grow Light

Overview: COB (Chips-on-Board) LED Grow Lights are made of multiple LED chips put together as one to produce powerful concentrated light. The MEIZHI 300W CREE COB LED Grow Light uses PAR optimized CREE LED chips to provide a full spectrum, highly penetrating light for plants. You can buy this COB grow light for a few bucks more than a hundred dollars, making it one of the more cost-effective fully-configured COB LED grow lights for weed.

True Power Draw ~114 watts
LED Type CREE LED chip
PAR Test 912 µmol/(m2s) at 12 inches
Light Coverage 1x MEIZHI 300W COB per 12.3 ft² (1.1 m²)

 

 

COB LED Grow Light, Hipargero 800W

COB LED Grow Light, Hipargero 800W

Overview: Combining the effectiveness of traditional LEDs and COBs together, this affordable COB light is setup with four high power 3000K Epileds COB chips and 16 3 watt Osram LEDs. The COB LED Grow Light, Hipargero 800W sells for under 150 dollars and comes standard with daisy chain connections, bloom and veg switches for the best spectrum to match plant growing cycles. Full spectrum from IR to UV. Compared to other COB lights, this one stays exceptionally cool.

True Power Draw ~240 watts
LED Type 4x3000K COBs + 16pcs 3W Osram LEDs
PAR Test 1266 µmol/(m2s) at 18 inches
Light Coverage 1x Hipargero 800W COB per 9 ft² (0.8 m²)

 

 

MARS HYDRO COB LED Grow Light CREE 300W

MARS HYDRO COB LED Grow Light CREE 300W

Overview: The MARS HYDRO COB LED Grow Light CREE 300W contains a big CREE LED 3590 in the middle surrounded by blue and red CREE and OSRAM LEDs. The light fixture operates without fans but uses a fin heat sink to dissipate heat silently, perfect for the likes of stealth closet grows. For a moderate price you can get this very effective COB LED light, good for any grow setup.

True Power Draw ~110 watts
LED Type CREEs + LEDs mixed
PAR Test 531 µmol/(m2s) 18 inches
Light Coverage 1x MARS HYDRO 300W COB per 6.3 ft² (0.6 m²)

 

 

CREE CXB3590 COB LED Grow Light, CF Grow 200W

CREE CXB3590 COB LED Grow Light Full-Spectrum Great CF Grow

Overview: This COB LED grow light by CF Grow is built with 2 bright 100W CXB3590 CREE COB arrays that shine a warm white 3500K full spectrum light. The high light intensity of COB LED grow lights help to penetrate through the canopy of bushy herbs while 90-degree glass lenses aid in light distribution. An authentic MEANWELL driver regulates the power of the CF Grow CREE CXB3590 COB LED Grow Light.

True Power Draw ~200 watts
LED Type Cree CXB3590 COB LED Chips
PAR Test ~400 µmol/(m2s) 18 inches
Light Coverage 1x CF Grow 200W per 7.3 ft² (0.7 m²)

 

 

COB LED Grow Light, Niello 600W

COB LED Grow Light, Niello 600W Full-Spectrum Top-25

Overview: The Niello COB D-series 600W has three powerful 200W COB Bridgelux/Epileds LEDs which produce a bright 3000K high PAR full spectrum wavelength, suitable for all stages of plant growth. A lightweight unit, weighing less than 5lbs. Built-in aluminum heatsink and 3 fans for cooling. Priced under $150, this COB LED Grow Light by Niello is just about the best COB LED grow light you can buy for the money.

True Power Draw ~210 watts
LED Type 3pcs. 200W COB Bridgelux/Epileds LEDs
Hang Height ~400 µmol/(m2s) at 18 inches
Light Coverage 1x Niello 600W COB per 20 ft² (1.9 m²) max

 

 

Best LED Grow Lights Under $500

MARS HYDRO Reflector 960W LED Grow Light

MARS HYDRO Reflector 960W LED Grow Light Best Full-Spectrum

Overview: An amazingly powerful beast of a LED grow light for the money, MARS HYDRO Reflector 960W LED Grow Light uses unique reflecting blades to produce refractory light beams to better spread the light coverage. Plug and play, the fixture is equipped with two on-board fans for cooling. The MARS HYDRO company is represented around growing forums and are respected as some of the best cheap LED grow lights for growing weed.

True Power Draw ~374/410 watts
LED Type 192 pcs. Epistar 5 watt chip LEDs
PAR Test 1200 µmol/(m2s) at 18 inches
Light Coverage 1x Reflector 960W per 16 ft² (1.5 m²)

 

 

Advanced Platinum Series P300 LED Grow Light

Advanced Platinum Series Top 25 Best LED Grow Lights

Overview: The best-selling LED grow light from the Advanced Platinum Series catalogue, the P300, contains the full 12 band spectrum of extremely bright light from UV to IR. The P300 comes at a cheaper price tag than the bigger models while roughly comparing to the PAR output of a 400W HID. Separate veg and flower settings. LEDs made in the USA. Uses the equipped fans to keep cool.

True Power Draw ~80 watts
LED Type 100pcs 3 watt LEDs
PAR Test 1050 µmol/(m2s) at 18 inches
Light Coverage 1x P300 per 17 ft² (1.6 m²)

 

 

HIGROW 1000W LED Grow Light

HIGROW Good 1000W Full-Spectrum Top LED Grow Light

Overview: A beast of light power at a good cheap price, the HIGROW 1000W represents some the higher quality Chinese-made LED grow lights. Features 90-degree optical lens that pop out from the fixture to optimize light concentration, spread and reflection. Veg & Bloom switch. The HIGROW 1000W shines full spectrum 12 band light with integrated UV and IR bulbs to maximize yield. Considered a 1000W HID replacement grow light though actually pulls roughly 400 watts.

True Power Draw 400±3% watts
LED Type 200pcs. 5 watt Bridgelux/Epileds
PAR Test 765 µmol/(m2s) at 24 inches
Light Coverage 1x HIGROW 1000W per 20 ft² (1.9 m²)

 

 

G8LED 240 Watt LED Grow Light

G8LED 240 Watt LED Grow Light Top-Rated Veg-Flower Good

Overview: The G8LED 240 watt is the lowest-priced model in the award-winning lineup of G8LED 8-band full spectrum LED grow lights. The company prefers the 8-band wavelength for the highest yield per unit of energy consumed. G8LEDs don’t use a veg/flower switch, but recommend to optionally supplement their 90W Reds for a flowering boost without wasting any LED diodes.

True Power Draw ~140 watts
LED Type 8-Band + IR & UV, 3W LEDs
PAR Test 890 µmol/(m2s) at 12 inches
Light Coverage 1x G8LED 240W per 6 ft² (0.6 m²)

 

 

BESTVA 2000W Full Spectrum Dual-Chip LED Grow Light

BESTVA 2000W Full Spectrum Dual-Chip LED Grow Light

Overview: Part of the company’s Dual-Chip series of LED grow lights, the BESTVA 2000W Dual-Chip is made of 200 10 watt LED emitter diodes, producing a full spectrum that ranges from IR to UV. 4 fans are built into the fixture as well as holes punched into the board for cooling. For the price, the BESTA 2000W is one of the best grow lights for weed plants.

True Power Draw ~390 watts
LED Type 200pcs Dual-Chip 10W Bridgelux/Epileds LEDs
PAR Test 1058 µmol/(m2s) at 12 inches
Light Coverage 1x BESTVA 2000W per 16 ft² (1.5 m²)

 

 

Best LED Grow Lights Under $200

King Plus 1500W Double-Chips LED Grow Light

King Plus 1500W Double-Chips LED Grow Light Great Full-Spectrum

Overview: For just over 100 dollars this LED grow light gives you a full spectrum output with UV & IR, enough light for any grow room area sized up to 12 square feet. The King Plus 1500W Double-Chips LED grow light has one-hundred 10 watt LEDs built in with board holes and fans for cooling. This super bright LED grow light is a good choice for beginner growers short on cash.

True Power Draw ~240 watts
LED Type 100pcs 10W Epistar LEDs
PAR Test 958 µmol/(m2s) at 12 inches
Light Coverage 1x King Plus 1500W per 12.9 ft² (1.2 m²)

 

 

HLG 100 Quantum Board LED Grow Light

Quantum Board LED Grow Light Horticulture Lighting Group 100

Overview: Experience the power of Quantum Boards cheap with the HLG 100 Quantum Board LED Grow Light. Incredibly efficient, the 192 Samsung LM561C S6 LEDs connected only use a total of 96 watts while producing over 15K Lumens of PAR. Horticulture Lighting Group is on the cutting edge of LED technology with their quantum board technology, prevalent in the cannabis growing community this year for the high efficiency and high yields the lights produce.

True Power Draw ~96 watts
LED Type 192pcs Samsung LM561C S6 LEDs
PAR Test 640 µmol/(m2s) at 12 inches
Light Coverage 1x HLG 100 per 9 ft² (0.8 m²)

 

 

VIPARSPECTRA Reflector-Series 600W LED Grow Light

VIPARSPECTRA Reflector-Series 600W LED Grow Light Best-Reviewed

Overview: Full of positive reviews from happy pot growers, the VIPARSPECTRA Reflector-Series 600W LED Grow Light contains 120 5 watt LED emitter diodes that together emit an opimized veg and flowering spectrum at the flip of a switch. Two quiet fans and aluminum cooling heatsinks help with cooling and heat dissipation. VIPARSPECTRA LED grow lights are designed by experienced indoor growers. You can buy the VIPARSPECTRA Reflector-Series 600W LED Grow Light for a bargain low price, which offers considerable savings compared to a 600 watt HPS/MH grow light.

True Power Draw ~260 watts
LED Type 120pcs 5W Bridgelux/Epileds LEDs
PAR Test 820 µmol/(m2s) at 18 inches
Light Coverage 1x Reflector 600W per 9 ft² max

 

 

BESTVA 1000W Full Spectrum Dual-Chip LED Grow Light

BESTVA 1000W LED Grow Light Full Spectrum Dual-Chip Good Price

Overview: BESTA LED grow lights are popular among cannabis growers for their high lumen PAR optimized output and super affordable price-tag. On top of this the BESTVA company is highly reviewed for their excellent customer support. The BESTVA 1000W Full Spectrum Dual-Chip LED Grow Light is built with one-hundred 10W double-chip LEDs that give a wide spread of core coverage area of full spectrum light, all for just over a hundred dollars.

True Power Draw 185 watts
LED Type 100pcs Dual-Chip 10W Bridgelux/Epileds LEDs
PAR Test 958 µmol/(m2s) at 12 inches
Light Coverage 1x BESTVA 1000W per 13.8 ft² (1.3 m²)

 

 

BLOOMSPECT 600W LED Grow Light

BLOOMSPECT 600W LED Grow Light Full Spectrum Cheap

Overview: A great deal at a little more than $100, the BLOOMSPECT 600W LED Grow Light gives you the most PAR light for a large growing compared to other cheap LED grow lights. The new models contain a secondary lens for maximum light spread. The 5 watt LEDs put out a full spectrum warm white 3500k type light than other more purple LED grow lights. High quality build with a big aluminum heatsink and fans for keeping the grow light cool. Veg/Bloom switch, easy to daisy chain. Tons of good reviews from growers. The BLOOMSPECT 600W may be the best LED grow light you can get in the low-price tier.

True Power Draw ~268 watts
LED Type 120pcs 5W LEDs
PAR Test 1240 µmol/(m2s) at 18 inches
Light Coverage 1x BLOOMSPECT 600W per 16 ft² (1.5 m²)

 

 

Cheapest LED Grow Lights (Under $100)

Roleadro 1000W Galaxyhydro LED Grow Light

Roleadro LED Grow Light, Galaxyhydro-Series 1000W Good-Affordable

Overview: Priced right under $100 at the time of writing, the Roleadro 1000W Galaxyhydro LED Grow light is a very low-price LED grow light which uses Epileds 10 watt chips. Full spectrum including infrared and ultraviolet. The Roleadro 1000W Galaxyhydro LED Grow Light shines differently than it’s competitors, producing a higher ratio of red light for increasing yields. High PAR value (453umol at 18 in.) and Lumen output makes this grow light a full spectrum solution from seed to harvest.

True Power Draw 132 watts ±5%
LED Type 100pcs 10W LEDs
PAR Test 950 µmol/(m2s) at 12 inches
Light Coverage 1x Roleandro 1000W per 9 ft² (0.8 m²) max

 

 

MARS HYDRO 300W LED Grow Light

MARS HYDRO 300W Full-Spectrum LED Grow Light Best Cheap Review

Overview: A best selling LED grow light in the fifty-dollar to one-hundred dollar range is the MARS HYDRO 300W LED Grow Light. This small-sized LED grow light uses 60 Epistar 5W LED chips that provide adequate lighting for a 2 x 2 foot growing area, per unit. A single quiet-operating fan and large heat sink keep the grow light at cool operating temperatures. Tons of good reviews from growers back up this budget LED grow light by MARS HYDRO.

True Power Draw ~140 watts
LED Type Epistar 5 watt LEDs
PAR Test 445 µmol/(m2s) at 18 inches
Light Coverage 1x MARS HYDRO 300W per 4 ft² (0.4 m²)

 

 

BESTVA Reflector Series 600W LED Grow Light

BESTVA Reflector Series Full-Spectrum 600W LED Grow Light

Overview: A unique LED grow light with an affordable selling price, the BESTVA Reflector Series 600W LED Grow Light features the new “Unicorn” radiator design and touts 60 powerful 10W LEDs pulling just around 132W of actual power. 10 watt LED chips are rare among such cheap grow lights for weed, which makes this BESTVA LED grow light one stand out from the competition. Switch on VEG mode for growing and BLOOM mode for flowering and seedlings.

True Power Draw ~132 watts
LED Type 10W Double-Chip LEDs
PAR Test 1359 µmol/(m2s) at 18 inches
Light Coverage 1x BESTVA Reflector 600W per 4.4 ft² (0.4 m²)

 

 

Lightimetunel Upgraded 300W LED Grow Light

Lightimetunel 300W LED Grow Light Low-Price Upgraded Full-Spectrum

Overview: Perhaps the cheapest LED grow light with daisy-chain capabilities standard, the Lightimetunel Upgraded 300W LED Grow Light produces full spectrum light including UV and IR from 3 Watt Double-Chip LEDs. The new 60 degree reflector cups help to concentrate the light for maximum PAR and Lumens in the coverage area. If you’re looking for a bare-bones dirt cheap LED grow light this Lightimetunel Upgraded 300W LED Grow Light can be bought for a little more than fifty dollars a light.

True Power Draw ~130 watts
LED Type 3 Watt Double-chip LEDs
PAR Test 520 µmol/(m2s) at 12 inches
Light Coverage 1x Lightimetunel 300W per 9 ft² (0.8 m²) max

 

 

UFO LED Grow Light, Apollo Horticulture GL60 Full Spectrum

Apollo Horticulture GL60 UFO LED Cheap Full Spectrum 180W UFO LED Grow Light

Overview: UFO lights were some of the first LED grow lights to hit the herb cultivator’s market years ago. Back then a model like this would cost around 400 dollars! Nowadays you can get them much cheaper – Apollo Horticulture GL60 Full Spectrum UFO LED Grow Light features 6 band full spectrum LEDs powered by the 60 3-watt Epistar LED chips. Not as powerful as the other cheap LED grow lights but these UFOs still can be useful in the grow room.

True Power Draw ~109 watts
LED Type 60pcs 3W LEDs
PAR Test ~500 µmol/(m2s) at 12 inches
Light Coverage 5 ft² (0.5 m²)

 

 

FAQ LED Spectrum Light Wavelength

Full Spectrum & Light Wavelength Explained

light spectrum gif

Absorption of Light

Just like how we can see only a certain range of light spectrum with our eyes, plants use a certain range of light spectrum to grow.

When plants grow outdoors, the sun provides the full spectrum of light a plant needs to grow naturally. Sunlight gets absorbed by the plant’s pigment molecules for photosynthesis (growing).

LED grow lights are designed to provide the optimum light wavelengths most beneficial to plant growth. We call this optimal range PAR, short for photosynthetically-active radiation. The PAR spectrum includes the light wavelengths of approximately 400 nm to 720 nm, illustrated below:

 

PAR Spectrum Graph: Red and Blue Light Wavelength Plant Absorption

By looking at the PAR spectrum graph we can see that plants use some colors more than others. A plant uses blue light(400 nm – 500nm) and red light(620nm – 700nm) wavelengths in the greatest concentrations. This is why we measure the performance of LED grow lights in relation to PAR output rather than Lumens.

You can check the PAR output of a grow light using a PAR meter (also called a PPF meter). This handy device measures per second how many photons of light hit the sensor.

  • PPF short for Photosynthetic Photon Flux, is the amount of light photons that make contact with your plants every second. Only light in the ranges of 400nm to 700nm are measured. The unit of measurement is µmol/s.
  • PPFD stands for Photosynthetic Photon Flux Density. PPFD, measured in µmol/(m2s) which we call micromoles or “uMoles” as slang. PPFD shows the density of PAR light in a given area, such as the density of PAR light at 12″ away from the LED grow light. We use PPFD to measure the PAR output of LED grow lights.

Testing the PAR output of a LED grow light may give you an idea of how far away to hang your lights from the plant canopy for optimum growth.

  • 600-1000 µmol/(m2s): High strength light, the best range for developing growth and flowering.
  • 400-600 µmol/(m2s): Medium strength light, for early veg and stretching.
  • 200-400 µmol/(m2s): Low strength light, good for delicate seedlings and clones.

red blue ratio led grow light

Red Light vs. Blue Light

When designing full spectrum LED panels, manufacturers dial in on the color wavelengths that plants absorb the most of, while also providing other colors for a balanced light exposure. Most importantly, red light and blue light.

A balanced full spectrum LED grow light will have not just one red and one blue color frequency, but a whole range of light available to plants. This provides plants will get a similar spectrum of light from that they would expect from the sun.

Red (620nm – 720nm):

Red light in nature helps to promote all-around growth and the flowering process. In nature red light comes out from the sun during late summer and fall, which can explain part of the reason buds form up phat then (the other part is light hours). Red-heavy grow lights do promote heavy budding and flowering, but this doesn’t mean that you should only use red light for your plants.

Balanced with blue light, red light can be used during the whole course of a plant’s life – from seed to harvest. Red color light is needed by plants need to grow healthy. Interestingly enough, plants make the most amount of energy during photosynthesis from red light.

Don’t be fooled by the color you see – even MH(metal halide) lights which are don’t look very red provide a fair amount of red light to plants. Many LED grow lights also are red-heavy.

Although plants can be grown with pure red light, too much sole red light will not help early vegetative growth. Blue light is also required in good quantity for happy plants!

Blue (400 nm – 500nm):

Blue light is so important that plants literally don’t know where to aim their leaves for light absorption without it.

Plants thrive in their early stages with sufficient levels of blue spectrum light. In the outdoors, blue light is most present during the spring and long-day summer, as plants are in this “vegetative” process of growth naturally – it’s easy to see how this all works together…

Without blue light, vegetating plants seem to stay small and stunted – resulting in short stems and a squat stature. Many LED grow light users even add blue light rich fluorescent lights into the grow room during a plants early stages to get an extra boost of blue light.

If you want tall and leafy plants, crank up the volume of blue light and you’ll get just that. Certain LED grow lights are designed with adjustable blue light and red light dials.

However, you might just want to run them full blast red and blue turned up to 11 for the whole growth cycle unless you have special plant size and grow space goals. Too much blue light during flowering will result in stretchier buds, so if you see that be sure to cut some blue and pump up more red light.

UV Ultraviolet LED Bulb

Ultraviolet(UV) Light

Ultraviolet(UV) light under 400nm consist of three main rays:

  • UVA (315–400nm)
  • UVB (280–315nm)
  • UVC (180–280nm)

The newest LED grow lights usually have a few bulbs in the UV range for a few reasons.

In nature, plants are exposed to the sun and are naturally exposed to the ultraviolet radiation that sunlight contains. When humans absorb UV radiation, we produce melanin to defend against the sun’s rays.

Cannabis on the other hand produces trichomes filled with cannabinoids, including the favored Δ 9THC and CBD to protect the plant from UV radiation. In essence, UV can be used to stimulate THC production.

Outdoors, the sunlight at higher elevations gives plants more UV exposure. The growers who live up in the mountains swear their stuff is more potent due to the increased UV exposure making the plant produce more cannabinoids.

We’ve noticed in Hawaii the weed in high-elevations gets super frosty and stony, although doesn’t yield as much as the low-elevation herb. More anecdotal evidence can be found in this hashish book written in 1965 about the finest quality hash being obtained from plants at high altitudes.

This is why many growers swear that it’s beneficial to use a little UV light to increase the plant’s production of THC which is why you see many LED grow lights with UV bulbs added.

However do be aware that UV radiation overexposure has been known to degrade different plant processes, including damage to DNA and damage to physiological processes. Too much UV radiation has shown to induce plant mutations. and is harmful to humans.

Outdoor growers don’t need to worry about UV overexposure, the only real danger of UV radiation to plants is from using artificial germicidal lamps to provide short wavelength(UVC) radiation to plants. In other words, you can burn up the plants with too much UV light.

Most of the lights on this list feature a small amount of LEDs in the UV spectrum, at a safe level for plants and humans.

Infrared (IR) Light Growing Cannabis

Infrared(IR) Light

Infrared (IR) and near infrared light consists of wavelengths over 700nm. Invisible to the human eye, infrared light is felt as heat.

PAR would tell us that deep red (short-wavelength, 680nm), far red(>680nm) infrared would be at large unused by plants for photosynthesis. Only one photoreceptor, phytochrome, is known to respond to far red wavelengths. Phytrochrome helps plants regulate photo-sensitive changes, such as when to start the bloom process.

As we learned from the Emerson Effect, research performed by Robert Emerson showed that plants simultaneously given these wavelengths grew at far higher rate than the sum of the red light and far red light alone.

This gave reason to believe that plants may have two photosystems – one for utilizing short-wavelength light and another for using long-wavelength light.

Infrared LEDs can be found in a lot of the LED grow lights above. The Electric Sky 300 has gained a massive following among cannabis growers for integrating these red wavelengths into their lights.

Advantages of LED Grow Lights

There are many benefits to using LED Grow lights in your indoor grow room or even in a protected outdoor environment like a greenhouse.cool-temperature LED grow lights

Simplicity is Cool

LED grow lights run cooler than MH/HPS HID grow lights and the bulbs last much longer.

Compared to a HID indoor grow setup which requires a lot of electricity, cooling and ventilation efforts, LED grow lights can be setup effortlessly in a closet, grow tent or similar space without needing to completely renovate it.

The beauty of LED grow lights is that they are as easy as plug & play for most situations. The fans and/or built-in heatsink will keep the grow light at a comfortable operating temperature.

This means that you do not need to spend the money or effort into building a super deluxe indoor grow room in order to grow a healthy cannabis crop. Easy! Just buy a grow light, crack some seeds and get growing.

save money with cheap LEDs

Low Wattage + High Efficiency

As opposed to HPS and MH lights, LED grow lights run at a much lower wattage while producing more PAR light-per-watt for plants to absorb and grow with.

This high efficiency and low power draw opens up the door for alternative energy sources, such as solar powered grows. For a few hundred bucks you can buy a solar panel, deep cycle marine batteries and an inverter to make your own solar powered indoor grow room. To do it the cheapest way you can just run the light during the nighttime and move plants outside to grow with the sun during the day.

A big step up from fluorescent lights, LED lights have enough penetration to stack even the inside of cannabis plants dense with fat nuggets. Whether they’re in vegetative or flowering cycle, LED lights can do the whole job well done. The “plurple”, pink or white glow emanated from these grow lights is strong and bright enough to give you a dizzy feeling. Remember to wear eye protection when operating LED grow lights.

Why is my 800W LED grow light only pulling 380W of power?
When a LED grow light is rated at a wattage, such as 400W, 800W, 1200W, ect. what it really means is that the light emitted is rated at the same amount of usable light energy as it’s HID (HPS/MH) 400W, 800W, 1200W, ect. equivalent. The true power draw is always lower, which is an energy-saving plus!

high-yield cannabis under LED grow lights

High Yields

Modern LED grow lights of today surpass the earlier models of years ago in available spectrum, durability and light strength.

Yields for indoor growers finishing cannabis under full spectrum LED lighting average 1/2 gram per watt among growers in the United States. This is considering the true power draw watt not the rated equivalent advertised.

The ballpark 1/2 gram per watt figure takes into account that your grow room will follow the proper space guidelines of the grow light, and that the plants will be optimized for growth ie. soil, water, nutrients and care.

Of course yields vary from strain to strain. That’s part of what makes growing new strains so fun. Check out these top ranked best sativa and top ranked best indica strains for some good cannabis strains to grow under LEDs.

Best LED Grow Lights on Amazon Shortlist

Grow LightLED TypePAR RatingTrue Wattage
1. Electric Sky 300 Wideband LED Grow LightGS1 Wideband Spectrum LEDsPPFD 840 at 18 in.300W
2. HLG 550 V2 Quantum Board LED Grow LightSamsung LM301B LEDsPPFD 1400 at 18 in.480W
3. G8LED 900 Watt MEGA LED Grow Light8-Band+IR&UV, 3W LEDsPPFD 1540 at 16 in.540W
4. HLG-300 Quantum Board LED Grow Light576pcs Samsung LM561C S6 LEDsPPFD 1036 at 18 in.285W
5. Advanced Platinum Series P600 LED Grow Light3 watt LEDsPPFD 1160 at 18 in.345W
6. MEIZHI 300W CREE COB LED Grow LightCREE LED chipPPFD 912 at 12 in.114W
7. COB LED Grow Light, Hipargero 800W4x3000K COBs+16pcs 3W Osram LEDsPPFD 1266 at 18 in.240W
8. MARS HYDRO COB LED Grow Light CREE 300WCREEs + LEDs mixedPPFD 531 at 18 in.110W
9. CREE CXB3590 COB LED Grow Light, CF Grow 200WCree CXB3590 COB LED ChipsPPFD 400 at 18 in.200W
10. COB LED Grow Light, Niello 600W3x200W COB Bridgelux/EpiledsPPFD 400 at 18 in.210W
11. MARS HYDRO Reflector 960W LED Grow Light192pcs Epistar 5W LEDsPPFD 1200 at 18 in.374/410W
12. Advanced Platinum Series P300 LED Grow Light100pcs 3W LEDsPPFD 1050 at 18 in.80W
13. HIGROW 1000W LED Grow Light200pcs 5W Bridgelux/EpiledsPPFD 765 at 24 in.400±3%W
14. G8LED 240 Watt LED Grow Light8-Band+IR&UV, 3W LEDsPPFD 890 at 12 in.140W
15. BESTVA 2000W Full Spectrum Dual-Chip LED Grow Light200pcs 10W Bridgelux/EpiledsPPFD 1058 at 12in.390W
16. King Plus 1500W Double-Chips LED Grow Light100pcs 10W Epistar LEDsPPFD 958 at 12 in.240W
17. HLG 100 Quantum Board LED Grow Light192pcs Samsung LM561C S6 LEDsPPFD 640 at 12 in.96W
18. VIPARSPECTRA Reflector-Series 600W LED Grow Light120pcs 5W Bridgelux/EpiledsPPFD 820 at 18 in.260W
19. BESTVA 1000W Full Spectrum Dual-Chip LED Grow Light100pcs Dual-Chip 10W Bridgelux/EpiledsPPFD 958 at 12 in.185W
20. BLOOMSPECT 600W LED Grow Light120pcs 5W LEDsPPFD 1240 at 18 in.268W
21. Roleadro 1000W Galaxyhydro LED Grow Light100pcs 10W LEDsPPFD 950 at 12 in.132±5%W
22. MARS HYDRO 300W LED Grow LightEpistar 5W LEDsPPFD 445 at 18 in.140W
23. BESTVA Reflector Series 600W LED Grow Light10W Double-Chip LEDsPPFD 1359 at 18 in.132W
24. Lightimetunel Upgraded 300W LED Grow Light3W Double-Chip LEDsPPFD 520 at 18 in.130W
25. UFO LED Grow Light, Apollo Horticulture GL60 Full Spectrum60pcs 3W LEDsPPFD 500 at 12 in.109W

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