Best COB LED Grow Lights: Full Guide + Top 7 Reviewed (2020)

As a fellow indoor grower, I’m sure you’ll agree with me there’s some kind of satisfaction when choosing the most efficient and best grow lights out there.

Perhaps you’ve heard the fuss about the best cob LED grow light, and now you too want to start growing indoors.

Look no further because I’ve got a treat for you.

I’ll show you why Chip-on-Board Technology is superior among all the grow lights out there and how they provide essential development for indoor growing.

In addition, I must also mention on why they are being quickly deployed into various indoor grow rooms across the world:

  • Its most notable design advantage
  • Its simplicity
  • Its electrical efficiency and improved lifespan
  • Improved spectrum
  • Improved Thermal Performance
  • Conveniences

Those are just some previews of how great COB LED grow lights are.

Now, before we even start to talk about some best cob led grow lights, let’s see what they are exactly…

Let’s Talk COB LED Grow Lights

Plant in a light bulb

What Really is This COB LED Grow Light?

Well, all we know is that COB stands for Chip-On-Board. It is an LED packaging latest advancement that shows mounting of multiple Light Emitting Diode Chips directly into a surface of a particular material in order for these chips to form a single module.

In other words, a minuscule wired, that is packed altogether into a piece of ceramic or copper board so that they exist as a sole light source.

It’s like this.

When a COB LED grow light is energized, it would appear more like a lighting “panel” than multiple single lights just like on the other case of a particular LED grow lights. For instance, SMD LEDs mounted altogether.

Yup, it’s most probably true.

While there are still various applications on utilizing HID bulbs, the benefits of using COB grow lights just outweigh its disadvantages.

But obviously, the question will always still occur.

Does this latest advancement justify the cost?

As we all know, all these things that are new in the market will literally get your wallet close to zero.

But since COB grow lights are proven just beforehand, what it gives you is nothing but advantages particularly in the long term use.

Here are some of those advantages that COB grow lights offer compared to those grow lights that precede before our very own COB LEDs.

  • Improved Electrical Efficiency
  • Improved Lifespan
  • Improved Spectrum
  • Improved Light Quality
  • Permits replacement of HID bulbs without any loss of light intensity
  • Better Light Distribution
  • Superior Thermal Efficiency

Quite a lot if I must say.

COB grow lights have given us the highest usable lifespan that a grow light can offer due to its very modern technology structure and design.

Even if the first capital is obviously higher, what we really want to know is that quality LED fixture will certainly last for about 30,000 hours.

In other words, it will pay itself off in the long run, implying that its quality is just superb.

In addition, one of the primary reasons that COB grow lights have made their way so fast in the market is that their HIGH Color Rendering index is normally over 80 and it possesses a broad spectrum.

If you want to know, CRI tells how the color of a light source alters how an object appears to an individual’s eyes and how well fine variations in color are illustrated.

Meaning, the higher the CRI, the more realistic will things look.

We might also want to know that up until now LED grow lights were the most picked for those individuals who are in need of low power.

As of right now, COB LEDs are more efficient at generating photons than any grow light technology. In other words, at the same power consumption, COB grow lights will always outweigh other grow light technologies at giving us high-quality light for our canopy.

For the matter of light distribution, certainly HID grow lights and COBs are both single-focused light sources.

But because COB grow lights are relatively easy to utilize and position, we could say that we have an extremely different instance here.

Rather than using one single light root, COBs can be spaced for an ideal uniformity to preclude any hotspots or low-intensity areas in your grow area.

I’m certain that you’ve now noticed that I am suffixing COB grow lights with LED (i.e. COB “LED” grow light).


Here’s the reason.

COB vs LED Grow Light

For all you know, there are no actual definite discrepancies between the two because “COBs” are merely a product of LED grow lights.

Meaning, they are one of the latest technology that the LED grow light products offer.

So the next time you encounter stuff such as a comparison between the two on the internet, don’t be confused.

Let’s put it this way; COBs are the children of LED grow lights.

Yep, that’s a more fun way and interesting analogy to get rid of your confusion.

Now, let’s go on to my TOP 7 list of my all-time favorite COB LED grow lights if ever you are thinking of getting yourself one.

Well, I highly suggest you get one for the better and optimal yields. And take note, the following COB grow lights are the best COB LED 2020, so what are you waiting for?

Without further ado, here they are:

Best COB LED Grow Light Reviews 2020

MaxBloom COB LED Grow Light Dimmable

This product gives a boost to each of your plants’ growth and certainly increases their yields by up to 40%! It also comes with two separate dimmers; one for vegetation and the other for flowering.

They are very quiet during operation because of its well-made fan.

In addition, this COB LED grow light is specifically designed with a special focus on energy efficiency. Meaning, it will save you tons of bucks on your electric bills.

As the number one on the list, I want to imply that this product is one of the best COB grow light 2020.


  • Eco-friendly
  • Energy efficient
  • Full-spectrum
  • Comes with dimming setting
  • Affordable
  • Good Design


  • Some issues of busted diodes


If you are looking for a very effective boost for your indoor plants, then go get your hand on this.

HollandStar COB-X5 Full-Spectrum LED Grow Light

This COB LED grow light is very silent, and that’s thanks to the built-in 4-piece fan that aids ventilation of the hot air. The casing is made of aluminum which acts as a heat sink, minimizing the total temperature.

In addition, this product saves lots of your bucks on bills since it only consumes around 200 watts!

And lastly, this one is a full-spectrum COB LED grow light that is very effective for the optimal growth of your plant.


  • Very affordable
  • Only consumes 200W of energy
  • Extra bright for a small COB
  • 1000 Watt Output
  • Quiet COB grow light
  • Built-in Fans
  • Heat efficient


  • Not waterproof


Seeking for a very affordable COB LED grow light for your lovely plants? Look no further and get this one!

Hipargero COB LED Grow Lights

This product is very ideal for all of the plant’s growth since it provides a genuine full spectrum of around 420nm to 700nm of light.

In addition, they’ve added 10 more components of 5 watts 65nm CREE LEDS for the fruiting phase of your plants so that you’d get the best yield during the flowering and fruiting stage.

This product will certainly last long due to the 5 Watt CREE XTE chips that are within this product.

Overall it’s a very fine product. Very easy to install, what you only need is a power supply and you have now a very simple button of on and off.


  • Comes with power cooling system
  • Made with high-grade aluminum
  • Full-spectrum
  • CREE XTE chips are used
  • Ideal for all plant’s growth stages
  • Durable
  • Easy to install


  • The casing gets hot when operating


This product is excellent if you are looking for an easy set-up that is hassle-free and generates great yields.

COB LED grow light dimmable 12-band full spectrum

This product has the power of 400W. Just by using these lights you could increase your yields by up to 30%.

In addition, this product features super bright pink CREE LEDs joined altogether on a single board.

It also gives Ultra Violet rays and Infrared band that simply increases the rate of photosynthesis of your plants to make them grow healthier and more vibrant.


  • Waterproof
  • Full Spectrum
  • Bright Light
  • Very affordable
  • Eco-friendly
  • Comes with UV and Infrared


  • Some complaints have been heard with the advertised percentage of plants growth


Seeking different kinds of light intensity for your lovely plants for optimal growth? Well, buy this immediately!

COB LED Plant Light Dimmable Full Spectrum 13 Band

Upon using this product, I’ve witnessed a 20% increase in the quality and quantity of my cannabis plants. In addition, this product only uses less electricity while at the same time staying cool and precluding overheating.

It has 3 different kinds of control for seeding, vegetation, and blooming.

This product also offers a very attractive design that looks very cool and elegant. It has a built-in fan for high-efficiency heat dissipation.

And lastly, I must say that this is the best chip on board led grow light based on my experience.


  • Incredibly bright
  • Good canopy penetration
  • Good power output
  • Low energy consumption
  • Full 15 band spectrum
  • Attractive design
  • Inbuilt fan
  • Heat efficient
  • Comes with 3 controls for seeding, veg, and blooming
  • Comes with dimming setting


  • Bulky and quite heavy


If you are looking for a close to full-packed COB LED grow light, I offer you this though it’s quite heavy.

800W COB LED Grow Light for Hydroponics

I’ll be honest on this 800W COB LED grow light review – this product is most ideal for weed. It is best for their vegetative stage and flowering phase of your plants since it has increased luminous efficiency and spectrum uniformity.

In addition, you can utilize this product anywhere across the globe since it only requires an AC of 85 up to 265V of power to operate.

At a hanging height of 20 inches, this product has a PPFD of 1350oumol/m2/sec which is relatively good and higher compared to other brands.

You must also know that it features good color ratio, heat dissipation, good stability, and longevity.


  • Remarkable longevity
  • Good heat dissipation
  • Good PAR and LUX values
  • High PPFD
  • Affordable
  • Ideal for weed
  • Good color ratio
  • Good stability


  • Some issues of busted diodes


Looking for an affordable and versatile COB LED grow light with a very good power output? Well, try this product that offers an 800W power output.

Roleadro COB Full Spectrum Grow Light

This product has a full spectrum, in other words, it copies the sunlight fully to aid your plants on their growth indoors.

It comes with a very bright and large coverage area. In addition to that, it gives a significant reduction upon your energy bills by conserving the power and it also gives very little heat generation.

With its fans inside, it will make sure that the temperature around your grow room stays as cool as possible. And lastly, the aluminum within this product acts as a cooling aid and lessens the contact thermal resistance.


  • Affordable
  • Heat efficient
  • Full-spectrum light
  • High PAR value
  • Good color uniformity
  • Good cooling conveniences
  • Energy saver
  • Built-in fans
  • Graded with aluminum material


  • No option of controlling the light intensity


If you are looking for a product that has been chosen as one of the best in the market, then this number 7 is what you are looking for!


Here’s what I want to say.

The above-mentioned lights are of utmost quality and I can testify that one of them, if not all have what it takes to be classified as the best COB, LED Grow light out there in the market, and also for YOU.

With my years of experience and comparing various kinds of grow lights out there, I can conclude that this recent advancement in grow light technology is most likely the tool to get those tasteful and absolutely rewarding yields.

So if you are also seeking that blissful experience, get a hold of my reviewed COB LED grow lights and purchase one of them.

I assure you they are worth the risk! Have fun!