Plants are going to need a good source of light if you want it to grow healthy. The problem with indoor growing is your plants won’t be getting light from the sun. Fortunately, there are alternative sources of light ideal for growing plants in your room.

That’s what COB LED lights are for. But with all kinds of lights to choose from, how do you know the right one for your weeds? Don’t worry. This review article will show you all the best alternative lights to help your cannabis to thrive.

Best COB LED Lights for Cannabis – Reviews

ModelWattage (Watts)Warranty (Years)Price
KINGLED X61000w3Check Price
Maxbloom X8 Plus800w5Check Price
Roleadro COB 300w1Check Price
Roleadro 400W400w2Check Price
CF Grow CBX35901201Check Price
Maxbloom X6 Plus600w5Check Price
Hydrobest Hydroponics800w3Check Price
Hollandstar COB1800w3Check Price

What is COB LED?

To begin with, COB is short for Chip On Board. You probably already know what LED means, which is a light emitting diode. Today, COB LED is one of the most popular types of lighting systems used for indoor farming. COB LED is the latest developed technology in the lighting industry.

This newest lighting system makes use of numerous LEDs mounted on a single board. Lighting companies found that doing so offers you a significantly improved lighting system. In COB LED lights, the LEDs are generally mounted on copper or ceramic board.

When all the LEDs glow at once, instead of lights from different light sources, COB LED offers you a single simulated light source. COB LED is becoming more and more popular in indoor cannabis growing. This is because this type of light source is much more reliable and cheaper compared to HID bulbs.

Similarly, COD LEDs offer you a white light that comes in full spectrum.  This means your growing area won’t be looking pink or purple at all times. Using this grow light for your cannabis plants will help you save energy thanks to them using half the wattage in contrast with HID.

To help you find the best COB LED lights for growing your cannabis, here are the reviews of some of the best COB LEDs available in the market. Read on and find out more information about the best grow lights suitable for your plants.

KINGLED X6


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KINGLED X6 is one of the best COB LEDs for indoor cannabis growing. It is an excellent cannabis grow light as it doesn’t use glass or any material that’s shatter-prone. This makes the COB LED lights to be hard-wearing and long-lasting.

It’s the perfect grow lights for different kinds of plants to grow indoors, not just cannabis. When used for cannabis growing, it offers you a full spectrum of light similar to the spectrum of sunlight, which is 410 to 730 nm. Its power consumption rate is only 325 watts, which helps you save on energy bills.

Together with the casing are two fans to help you minimize the light’s temperature. The casing also has drilled holes for improved air circulation. With a 3-year warranty and features such as free hanging hook and power cord, KINGLED X6 is genuinely one of the best COD LED grow lights.

Pros:

  • Full spectrum light
  • 2 fans to keep the temperature at a minimum
  • High coverage area and LUX
  • Saves power and saves costs
  • 3-year warranty

Cons:

  • High investment initially

Maxbloom X8 Plus

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Many cannabis indoor growers would tell you that Maxbloom X8 Plus is the best COB LED lights out there.  Manufactured by a respected manufacturer in the light industry, you can expect that Maxbloom X8 Plus is durable, long-lasting, full of features, and has an extended warranty as well.

It has a bright pink light with a full 12 band spectrum of light that includes UV. The spectrum ranges from 380-420nm while IR ranges from 720-760nm. The light that Maxbloom X8 Plus offers effectively improves your plants’ health.

With that, you can expect a yield increase of around 20-30%. Besides the full spectrum, its features include two distinct dimmers. There is one for the vegetative stage and the other one you can use for the bloom stage. With its adjustable light intensity, you can control it from 0-100%.

Maxbloom designed X8 Plus to offer you significant savings on energy. Compared to using HPS lamps, this grow light helps you save a considerable sum of money on your energy bills. With a soundless fan installed with the product, you will enjoy the quiet while it runs.

Just like with other Maxbloom products, X8 Plus includes a 90-day money back guarantee. Of course, it also has a 6-month replacement warranty. Along with that, you are protected by a 5-year warranty in case it breaks down.

Pros:

  • Full light spectrum
  • Ideal for cannabis growing
  • Eco-friendly
  • RoHS-approved
  • Saves energy
  • Adjustable light intensity
  • 5-year warranty

Cons:

  • Undetermined

Roleadro COB LED Grow Light


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Known to be a high precision COB LED grow light, Roleadro is not only bright but inexpensive as well. In fact, it is one of the inexpensive COB LED lights in this review. More than being bright and cheap, you’d love this grow light for its incredible features.

Roleadro COB LED Grow Light is resistant to oxidation, corrosion, static, and dust. It can also on virtually any kind of weather. When you use it, you’ll have a broad area of coverage thanks to its 120-degree reflector. The same reflector also helps to draw out reflection for better light penetration.

Another of the advantage of Roleadro COB LED Grow Light is its capable of reducing light loss by 20%. It’s all thanks to a lot of LEDs crammed within a small space. This also gives you with high PAR and LUX values.

With a clean and simple interior, this grow light is able to circulate air better inside. Therefore, it’s able to keep the temperature at a minimum effectively. The design of Roleadro COB LED Grow Light is that if other lights fail, it won’t affect the other systems that make repairing things efficiently.

This COB LED grow light also has an on/off switch to help you save power when you don’t need it. If you need an extended coverage, it’s possible to daisy chain the Roleadro COB LED Grow Light. Upon purchase, you can enjoy a 30-day money back guarantee along with a 1-year warranty.

Pros:

  • Light loss reduced by 20%
  • Revolutionary cooling system
  • Durable, lightweight, and compact
  • On/off switch
  • Full spectrum of light
  • Simple design
  • Superior COB tech
  • Daisy chainable
  • 1-year warranty

Cons:

  • No spectrum values indicated
  • Manual control of spectrum is not possible

Roleadro 400W


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From a reputed manufacturer Roleadro, this 400W COB LED grow light is the perfect equipment to use any indoor growing. They have been producing lighting device for 9 years now, giving them a lot of experience in design and manufacturer of the best lighting systems, including COB LEDs.

An Amazon’s Choice and one of the best COB LED lights for cannabis, you can expect Roleadro 400W to do well in lighting your weeds. Featuring a full spectrum of light, it’s capable of copying sunlight so that your plants can thrive even indoors.

The lights’ full spectrum offers you a bright light capable of covering a large area. Besides this, Roleadro 400W helps to reduce your energy bills by giving small heat output. It has integrated COB LED, which offers you further PAR value. At the same time, it provides color uniformity.

It is fitted with CE-certified fans for the lowest temperature possible. The grow lights also have aluminum, which serves as a cooling system. With it, the contact thermal resistance is significantly reduced. All the features of Roleadro 400W help to ensure your cannabis would thrive.

When you purchase a Roleadro 400W, you can benefit from 30-day money back guarantee. Additionally, the product comes with a 2-year warranty. Durable and long-lasting, the warranties ensure you can benefit from this COB LED grow light for long.

Pros:

  • High PAR value
  • Full spectrum light
  • Cheap
  • Color uniformity
  • Great cooling feature

Cons:

  • Limited features
  • Not possible to control light intensity

CF Grow CBX3590


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A new styled COB LED grow light; CF Grow CBX3590 is perfect to use to light up your cannabis plants. Of course, it’s also ideal for all kinds of flowers and fruit plants to grow inside your house. CF Grow CBX3590 mimics sunlight thus giving your plants a full spectrum of light from 380 to 780 nm.

This light spectrum is really great for weeds. Besides a full spectrum, CF Grow CBX3590 offers enough power output of 120 watts as an alternative light for a 400-watt HPS lamp. To ensure this COB LED grow light is high-quality and long-standing, MEANWELL provides it offers you stable voltage.

Reputable companies created the different parts of this COB LED grow light. With a free power connector and metal hook, you get the best value for your money with CF Grow CBX3590. It’s definitely a good buy as one of the best COD LED grow lights for cannabis.

Pros:

  • Full spectrum light
  • Lightweight
  • Bright CREE LED
  • 50,000 hours lifetime
  • New stylish design

Cons:

  • Low power but a high price
  • No warranty

Maxbloom X6 Plus


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If you’re looking for COB LED grow light with great warranty, this is the product you’re looking for. It’s highly popular in terms of reliability, especially since Maxbloom is quite experienced in manufacturing grow light products. In terms of a warranty, you’ll love its five-year guarantee.

By using this COB LED light, you’ll easily notice a significant 20-30% increase in your yield. Maxbloom’s grow lights also offer a full 12-band spectrum. To help quicken photosynthesis, this COB LED grow light comes with an extra bright pink light, UV, and IR.

This helps to make your weeds bloom better and faster. Maxbloom X6 Plus allows easy control of light intensity from 0-100%. Installation is simple and easy enough, not to mention it includes a hanging it. With this accessory, you just hang the lights above your cannabis plants when in use.

Environmentally-friendly, Maxbloom X6 Plus is RoHS-approved and jam-packed with incredible features. When you purchase one, you can enjoy a no-questions-asked 90-day guarantee, 6-month replacement warranty, and of course, the 5-year part warranty.

Pros:

  • Eco-friendly
  • Inexpensive
  • RoHS-approved
  • 20-30% yield increase
  • Full spectrum light
  • Trusty, experienced manufacturer
  • 5-year warranty

Cons:   

  • Heavy

Hydrobest Hydroponics 1800W COB LED Grow Light


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Perfect for cannabis indoor growing, Hydrobest COB LED grow light is famous for offering high power output at a significantly lower price. If you’re looking for a competitive lighting system to use in your grow tent, this is what you’re looking for.

With an 800 watts power output, it sure provides your grow room with enough bright light. Hydrobest has patented its reflective cups and lens. This grow light design comes with increased light gathering effect. As a result, it has higher LUX and PAR values compared to other COB LED lights.

Hydrobest COB LED lights are best to use in the vegetative and bloom stage of your cannabis plant. This is because of the product’s integrated COB, which improved its color uniformity as well as luminous efficiency.

This particular grow light is convenient to use as it operates with only AC of 850-265V of power. You can also attach it beside an HPS. More than these, Hydrobest has other features to boast such as superior heat dissipation, excellent color ration, long lifetime, and high stability.

At 18 inches, it features a real and noticeably higher hanging height compared to other brands. In addition, it has a 1360umol/m2/sec PPFD. Upon purchase, it offers you a 3-year warranty as protection for breaks or if something wrong happens.

Pros:

  • Good LUX and PAR values
  • Exceptional heat dissipation
  • High PPFD
  • Durable and long-lasting
  • Inexpensive

Cons:

  • Other customers notice some LEDs aren’t lighting up at initial use

HollandStar Full Spectrum LED Grow Light 1500W


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A highly rated COB LED light, Maxbloom X4 Plus comes with 400 watts power output. By using this grow light, it’s said you can gain a yield increase of around 20-30%. Among the features of this COB LED light is the lively pink CREE LEDs.

Joined and packed on the board, they provide a complete light spectrum that helps your plants to thrive. In addition, the plant gives out IR and UV bands to further improve your plants’ growth. All these features support your cannabis plants’ health by increasing photosynthesis rate.

Another notable feature of the light is the adjustable light intensity. Maxbloom knew about the need to dim the light at some point during different stages of growth. Taking that into consideration, Maxbloom X4 Plus allows you to control the light intensity from 0 to 100%.

This COB LED light is also waterproof as it is made of silicone rubber seals. Maxbloom offers all their products with a good warranty. You can purchase this grow light with a 90-day money back guarantee along with 6-month replacement warranty as well as 5-year warranty.

Pros:

  • RoHS-approved
  • Full light spectrum
  • Extremely bright light
  • Cheap despite quality features
  • IR and UV-enabled
  • Waterproof
  • Eco-friendly
  • 5-year warranty

Cons:

  • Grow of plants isn’t 20-30% accurate, as some users noted

Conclusion

If you haven’t made your choice of the COB LED light for your grow room, this article gives you a whole lot of idea about the best options. Based on the reviews above, Maxbloom products are the top choices, particularly the X8 Plus model.  To find the one for you, make sure to do a lot of testing and research!


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Earl Hoffman
Owner and founder of The Weed Prof. Growing Guru and SEO Sorcerer by day, mad toker by night.

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