Best COB LED Grow Lights

The most recent craze among indoor growers is the COB LED grow light. COB, which stands for chip on board, is a technology that allows for many LED chips to be placed on one lighting unit. COB lights consume less power, are brighter, and have a higher light output than older LED lights using technologies like SMD and DIP.

COB LED grow lights have replaced traditional MH and HPS grow lights which operate at a high temperature and have a high energy consumption.

As indoor growers, there’s one thing we know for sure: the healthy development of plants is highly dependent on light. COB LED grow lights provide the best illumination for plants to bloom and produce high yields.

But there are so many COB LED grow lights, how do you choose the best one? We know it can be quite confusing to make a choice with so many options available. That’s why we’ve vetted and chosen the top COB LED grow lights.

Go through our list and choose the most suitable one for your needs.

ProductRatingPriceWatt/hrAreaLifespan$/watt
Phlizon CREE COB Series 2000W LED Full Spectrum Plant Grow LightPhlizon CREE COB Series 2000W LED Full Spectrum Plant Grow Light
(4.6)
4.6/18
$299.994514 x 4 ft50000 0.66
Phlizon CREE COB Series 1000W LED Full Spectrum Grow LightPhlizon CREE COB Series 1000W LED Full Spectrum Grow Light
(4.1)
4.1/14
$169.992453.5 x 3.5 ft50000 0.69
Niello 600W COB LED Grow Light - Best for CannabisNiello 600W COB LED Grow Light - Best for Cannabis
(4.7)
4.7/38
$138.992105 x 4 ft50000 0.66
MrHua 600W LED Plant Grow Light COB Full SpectrumMrHua 600W LED Plant Grow Light COB Full Spectrum
(4.9)
4.9/30
$139.992005 x 4 ft50000 0.69
XHGrow 1800W COB LED Grow Light Full SpectrumXHGrow 1800W COB LED Grow Light Full Spectrum
(4.7)
4.7/9
$121.993003.5x3.5 Max50000 0.4
PARFACTWORKS 500W COB LED Grow LightPARFACTWORKS 500W COB LED Grow Light
(4.7)
4.7/14
$138.931703.5 x 3.5100000 0.81
CANAGROW CREE CXB3590 200W COB LED Grow LightCANAGROW CREE CXB3590 200W COB LED Grow Light
(4.4)
4.4/55
$290.002002.5 x 3 ft50000 1.45
Roleadro 400W COB Full Spectrum LED Grow Light with On Off SwitchRoleadro 400W COB Full Spectrum LED Grow Light with On Off Switch
(3.8)
3.8/112
$109.992003.5ft x 4ft at 24"50000 0.54
HIPERGROW 800W COB LED Grow Lights Full SpectrumHIPERGROW 800W COB LED Grow Lights Full Spectrum
(4.6)
4.6/82
--2403ftx3ft10000

$299.99
Total Reviews - 18
Review Score - 4.6
Watt - 2000
Lifespan - 50000
Area - 4 x 4 ft
Warranty - 2 years
Avg. power draw - 451

Phlizon CREE COB Series 2000W LED Full Spectrum Plant Grow Light - Review

The two greatest features of this COB LED grow light are its high light output and its perfect spectrum for plants. Its coverage is also quite good (the maximum coverage is 4.1x4.1ft). We think the lumen output is brilliant, especially when it operates at full power. It is comparable to an 800 watt HID grow light. It only needs 451 watts to provide this coverage and will reduce your lighting electric bill by half. When you hang it at 18", it offers a PPFD of 2161.4 umol/m2s and enhances plant growth. The best part is that it doesn't have to run at full power if you don't want it to, thanks to the power-saving switches. You can switch off some diodes whenever you want. The light features a fireproof and UV protected frame and metal cover. The Phlizon 2000W COB light provides the perfect light spectrum for plants at all growth stages with sufficient amounts of blue, red, and white light. With a lamp life of 50,000 hours and more, you won’t need to replace this light for at least 5 years. Pros
  • High light output – uses powerful 50W CREE COB LEDs
  • Wide coverage (4 by 4ft core coverage)
  • Best spectrum for plants
Cons
  • Costs a bit more than other 2000W grow lights
  • Cannot be daisy chained to other lights

Features 


$138.99
Total Reviews - 38
Review Score - 4.7
Watt - 600
Lifespan - 50000
Area - 5 x 4 ft
Warranty - 2 years
Avg. power draw - 210
LED pieces/watt - 3pcs x 200W

Niello 600W COB LED Grow Light - Best for Cannabis - Review

The LED grow light industry keeps releasing new grow lights that make growers happy and boost yields. This is one such light. With a spectral range of 380-780 nanometres, it is perfect for all types of indoor plants at all growth stages. It features three reflective cups – each with a unique design for improved light-gathering effect – that deliver a high lux and PAR value. The grow light replaces a 600W metal halide or high pressure sodium light while using less electricity and providing higher-quality light. HID lights (MH and HPS) require 600 watts to produce 600 lumens, but this light only needs 210W to deliver 600 lumens. The light features powerful 200W COB Bridgelux and Epileds LEDs with a CCT of 3000K. Weighing only 4.85lbs, it’s lightweight and easy to install. It provides a maximum coverage of 5 by 4ft at a height of 24”. 3 fans and a built-in aluminum heat sink provide high-speed heat dissipation without creating an irritating noise. Pros
  • High Lux and PAR value because of the reflective cup and lens
  • Increased light uniformity
  • Full light spectrum for all growth stages
Cons
  • Extremely bright
  • Not waterproof
 

Features 


$139.99
Total Reviews - 30
Review Score - 4.9
Watt - 600
Lifespan - 50000
Area - 5 x 4 ft
Warranty - 2 years
Avg. power draw - 200
HID Replacement - 600w HPS/HID
LED pieces/watt - 3pcs x 200W

MrHua 600W LED Plant Grow Light COB Full Spectrum - Review

Featuring a uniquely designed reflective cup and a 120° optical lens, you can rest assured that your herbs will enjoy sufficient and focused light. Light wastage is not an issue as the light has a high lux and PAR value than the regular LED grow light. Three 200W COB Bridgelux LEDs work together to generate 600 lumens of light. They give your plants sufficient light while only pulling 200 watts of power. 3 quiet, high-speed cooling fans – doing 2000 revolutions per minute – and an open exhaust outlet make for efficient heat dissipation. Circuit safety is important, and the built-in safety pipe makes sure of that. With the capacity to mimic natural light, this COB LED light provides adequate illumination to promote the healthy growth of plants at all stages – from germination to harvest. The light it produces is mostly white with a pink tint. Pros
  • 120° optical lens for more focused light
  • High-speed cooling fans to prevent overheating
  • Only draws 200 watts of electricity
Cons
  • Doesn’t have IR and UV spectrums
  • Not waterproof

Features 


$229.00
Total Reviews - 9
Review Score - 4.7
Watt - 1800
Lifespan - 50000
Area - 3.5x3.5 Max
Warranty - 3 years
Avg. power draw - 300
HID Replacement - 800 watt HPS/MH
LED pieces/watt - 6pcs / 300W

XHGrow 1800W COB LED Grow Light Full Spectrum - Review

This new entrant to the market can be used in both greenhouses and house gardens. With 6 pieces of 300W LEDs, the light it generates is similar to natural light. It also has a full spectrum (380-800nm). The light only pulls 300 watts of electricity and is a compact unit (measuring 400 X 210 X 60mm). If you have a big grow area, this COB LED light may not work well for you as it can only cover a 3 X 3ft area. It is ideal for all plant stages. Be sure to use it in a completely dry area because it’s not waterproof and won’t last long if exposed to water or rain. You should also keep the air inlet and outlet unblocked so that it remains cool. It’s not clear at what height you should hang this light, but if you hang it too high, that will negatively impact plant growth. In case you’re concerned about what to do if the light malfunctions, don’t be. It comes with a 3-year warranty. Pros
  • Ideal for microgreens
  • Lengthy warranty
  • Compact but very bright
Cons
  • Covers a small grow area
  • Not ideal for the blooming stage

Features 


$138.93
Total Reviews - 14
Review Score - 4.7
Watt - 500
Lifespan - 100000
Area - 3.5 x 3.5
Warranty - 3 years
Avg. power draw - 170
LED pieces/watt - 2 COB

PARFACTWORKS 500W COB LED Grow Light - Review

We can usually tell the quality of a grow light just by looking at the LEDs. And this one has the best: 24, 10W Bridgelux/Epileds LEDs. 2 COB LEDs with a color temperature of 3000K only make it more powerful. This grow light provides the perfect spectrum to promote your plants’ growth. The light produced is bright and uniform thanks to the patented reflector and optical lenses. These enhance canopy penetration and PAR output by more than 200% Each of your plants will be flooded with direct light due to the beam angle of the LEDs (90°) which ensures that light is focused over the entire grow area. The grow light provides a maximum coverage of 3.5 X 3.5ft. Your plants will flourish under this light’s powerful bloom enhancer. When it comes to energy efficiency, this light delivers over and over again. It only consumes 170W. In addition, its long lifespan of 100,000 hours will stop you from spending money on maintenance and replacements for several years to come. Pros
  • Long useful life (100,000 hours)
  • High light output and canopy penetration
Cons
  • Only has 2 COB LED chips

Features 


$290.00
Total Reviews - 55
Review Score - 4.4
Watt - 200
Lifespan - 50000
Area - 2.5 x 3 ft
Warranty - 3 years
Avg. power draw - 200
HID Replacement - 400W HPS
LED pieces/watt - 2 COB / Up to 120w

CANAGROW CREE CXB3590 200W COB LED Grow Light - Review

With 2 CXB3590 COB LED chips, each using 120 watts of power, this grow light offers the perfect spectrum for successful plant growth. If you consistently operate this COB LED grow light for 12 hours a day, you’ll speed up the growth of your plants and leaves will shoot up before you know it. Each growth stage requires the light to be at a different height above the plants to support their growth needs. The MEAN WELL LED driver for this light gives it a long lifespan and its housing is very sturdy. We attribute the ability of this light to promote the healthy growth of plants to its high-quality lenses. In case you have a large grow area, you can increase the light output by using a daisy chain to connect more lights. It’s quite convenient as you won’t require many sockets. The light is dimmable and can be adjusted upwards as the plants grow. Pros
  • Powerful components: CREE LEDs and a MEAN WELL driver
  • Dimmable
  • Easy-to-replace LEDs
Cons
  • No timer or remote control
  • High price point

Features 


$109.99
Total Reviews - 112
Review Score - 3.8
Watt - 400
Lifespan - 50000
Area - 3.5ft x 4ft at 24"
Warranty - 2 years
Avg. power draw - 200
LED pieces/watt - CREE CXA3070 Chips

Roleadro 400W COB Full Spectrum LED Grow Light with On Off Switch - Review

The grow lighting industry has grown in leaps and bounds and continues to grow every day. One of its recent developments is COB lighting. COB, which stands for chip on board, is a technology where many LEDs are mounted on a single circuit board to form one module. This allows the LEDs to have more diodes.

Unlike some LED grow lights, this 400w COB grow light doesn’t have only blue and red light, it has all the lights plants need to develop well. Don’t let its simple, minimalist design that’s devoid of embellishments fool you into ignoring it. It is packed with features you will love.

Chip on board technology allows for increased brightness and coverage, resulting in more coverage for less electricity. The grow light uses 200 watts and produces 400 watts.

The only problem is it tends to heat up considerably, especially when you keep it running for more than 16hrs.

Features 



Total Reviews - 82
Review Score - 4.6
Watt - 800
Lifespan - 10000
Area - 3ftx3ft
Warranty - 1year
Avg. power draw - 240
HID Replacement - 800 HPS/MH
LED pieces/watt - 16pcs 3W Osram LED

HIPERGROW 800W COB LED Grow Lights Full Spectrum - Review

Comprising 4 pieces of 3000K high-performance COBs which are uniquely designed for plants, you can’t go wrong with this light. It provides a full spectrum of 380nm to 730nm which is perfect for all indoor plants at all growth stages. The manufacturer of this grow light did not spare any expense to make it high quality. It features 3W Osram LEDs, among the best on the market. If you’re looking to replace your 500W metal halide or high pressure sodium grow lamp, the HIPARGERO LED grow light is an excellent choice. It consumes only 240W and delivers 800 lumens of light. Its double switches will save energy and put some money back into your pocket. When raised 24 inches, this light is perfect for a 3x3ft grow area. The powerful cooling system eliminates overheating. High-speed cooling fans, a super heat-conducting iron cover and a built-in aluminum heat-sink keep the light cool and enhance its life expectancy. Pros
  • Double switches offer energy savings
  • Daisy chain function
  • Powerful cooling system
Cons
  • Not waterproof
  • Extremely bright

Features 

Buying Guide for COB LED Grow Lights

When deciding which COB LED grow light to buy, there are important factors to consider and questions to ask. This guide will give you clarity and help you to decide which light is best for your specific requirements.

Here’s what to look for.

1.      Full Spectrum

For plants to grow well, they require a particular range of light spectrum. Outdoors, natural light from the sun provides plants with a full spectrum for their growth. Indoors, LED grow lights provide plants with optimum light wavelengths. This optimal range is commonly known as PAR (photosynthetically-active radiation).

This spectrum has wavelengths between 400nm and 720nm. Plants typically use red light (620nm-700nm) and blue light (400nm-500nm) wavelengths in the highest concentrations. For this reason, the performance of COB LED grow lights should be measured in relation to PAR instead of lumens. A handy device called a PAR meter can help you measure the PAR output of your grow light.

2.      The Size of Your Grow Area

If your grow area is 5X5ft, a COB LED grow light with 3X3ft coverage won’t be able to provide sufficient light to your plants. Your plants should be well illuminated by the light in order to grow and flourish.

3.      Ultraviolet (UV) Light

Most grow lights on the market have very few chips with a UV spectrum for valid reasons. A high amount of UV light can be detrimental to the plants, damaging their physiological processes and endangering human beings as well. Most grow lights feature a small amount of UV which is safe for plants. UV light can make plants very potent.

4.      Dimming Feature

COB LED grow lights that are dimmable allow you to adjust the light depending on the growth stage of the plants. As they germinate, the light can be dimmed to minimum to support growth at that stage. Very bright light at this stage can slow down growth and damage plants.

As the plants grow, the light can be increased at each stage because they can tolerate the brightness without any risk of damage to their growth.

5.      Cooling System

All COB LED grow lights feature a cooling system, and rightfully so. But cooling systems are different. Choose a light with an in-built aluminum heat-sink, powerful fans, an air outlet and an inlet. These keep the light cool and prevent overheating, which could damage it. Also, the atmosphere around the plants remains cool and their growth process is not affected.

6.      Price

The prices of COB LED lights differ as night and day. You might be tempted to get a cheaper light, but will it meet your particular needs? Look for a light that offers the best value for money.