The best COB LED grow lights will revolutionize how you cultivate cannabis (or any indoor plant for that matter). See, as an indoor grower, you must create the most favorable condition for your plants to thrive. Lighting is a crucial component of your grow tent set up so you must get it right from the get-go.
COB LEDs, by design, maximize the lumen output per inch. What this means is that they provide a denser variety of light in comparison to other light options. To function, COBs rely on a single circuit with two contacts irrespective of the number of diodes. The ripple effect is that you no longer need the standard LED structure to provide enough light for your plants.
It is essential to note at this point that COB (an acronym for Chip on Board) feature multiple tiny LED chips, mounted directly on a ceramic or board. These diodes, when turned on, emit a full spectrum of white light.
More than that, COBs use the ceramic, copper or aluminum substrate to transfer heat, by extension enhancing dispassion. Think of these as lights to help you build the perfect lighting environment for your plants smoothly without having to deal with overheating inside your grow tent.
With that out of the way, here’s a closer look at the most sought-after COB grow lights and what makes them a special addition to your tent.
Top 5 Best Cob LED Grow Lights 2021
A relatively new entrant into the market, the Cree CXB3590 is a brilliant choice if you’re for an option that can allow you to grow plants other than cannabis. It will serve you well for tissue culture, vegetable growth, potted plants, greenhouse farming and of course, indoor gardens.
Full Spectrum Light
The Cree CXB3590 is ideal for all growth stages thanks to its full spectrum 380nm~780nm capability. It is an excellent alternative to 600 or 800W HPS grow lamp. Each chip can generate a reasonable 120Watts of power. Sure, that’s not the best output there is but is enough to allow your plants to grow faster.
The CXB3590 is all about giving your months upon months of reliable performance. Its LED driver uses heavy-duty, water-resistant material to extend the life of COB chips while ensuring stable voltage. Add the high-quality holder and Germany-made WAGO connector and what you get is a reliable grow light that you can count on time and again. More specifically, this thing can provide up to 100,000 of use – yes that’s how durable it is!
90° Glass Lenses
The CXB3590 combines innovative glass lenses and high light output to improve the overall health of your plants. With up to 97% light transmittance, it will leave your plant’s leaves popping out within 12 hours of over daily use. One more this – this COB light covers an area of 7.5 to 70 square feet, hanging at about 8 to 59 inches based on the growth cycle of your plants.
One of the top rated LED grow lights on the market, the Niello is in a class of its own. For starters, it has undergone ETL certification and comes with a three-year warranty for assurance on safety and quality. But, that’s not what makes it blink when pitted against the close competition.
Ultra Powerful Lighting
The Niello D-Series grow lights come with 3*3000K COBs, uniquely developed at a spectral test range of 380nm~780nm. Satisfyingly versatile, these will are ideal for vegetative and flowering stages of growth. More than that, they ensure peak plant photosynthesis due to the capacity to produce an effective wavelength of light.
Higher Value PAR and Energy
The Niello touts a brand-exclusive design, complete with reflective lens and cups for higher light-gathering effect. Even more impressive the PAR and Lux value is higher than standard lights to reduce light loss. Essentially, this allows your plants to utilize up to 98% of all light generated by the unit for optimal growth.
High-Speed Heat Dissipation
The Niello grow light runs on three high-speed fans and a big cooling window at the back for quiet operation. In the meantime, the integrated aluminum heat sink provides stellar heat dissipation to help regulate the temperatures inside your grow tent.
The other notable highlight is the COB packing technology that allows this unit to save up to 30% of operation cost. Indeed, this implies that you don’t have to worry about scaling electricity bills even when the light is running 24/7.
With a consumption of only 110W±5%, this is the best COB grow light to replace your 250 Watts HPS or HID grow lights. It is 80% energy saving and while providing enough lighting for a grow area 2.5’ X 2.5’ as long as you hang it at the height of 18 inches. Or, you can opt for two COBs with an output of 300 Watts to cover an area if 4 x 4 feet.
No Fan Operation
The MARS HYDRO ticks all the boxes of a good COB grow light for indoor growing. Unlike most models, it uses a fin heat system that eliminates the need of a fan. The result is super quiet output. Reviewers sat you can hardly hear any noise when it is working.
CREE LED Design
As stated, COB LEDs emit a solid white beam of light. The MARS HYDRO, however, is a little bit different. It sports one big 3590 COB at the center, surrounded by the small blue and red LEDs – 460/630 and OSRAM 660 – to give you multi-colored lighting.
High Lumens and Full Spectrum
The MARS HYDRO emits light with a wavelength of 380nm-780nm. Now, this is a shift from typical options with blue and light. In short, this unit provides all kinds of light your plants need to flourish – it is close to natural sunlight as you can get.
The HIPARGERO can last for up to 50,000 hours. A mid-priced option, it uses high-grade aircraft aluminum with a heat sink to reduce the noise. It weighs about 4 kilograms with a bean angle of 120°. We take a closer look.
High PPFD Output
The HIPARGERO is brighter than 800 watts standard lights. It is the COB unit to go for if you want to promote your plant’s growth, budding and flowering stages. It uses 4x3000K high power diodes and 16 pcs 3 Watts to create an environment that guarantees maximum yields.
Daisy Chain Design
You don’t have to worry about not having enough power outlets if you want to hang more than one unit in your grow tent. The HIPARGERO has a super thoughtful design that allows you to connect up to three HG 800 grow lights using fewer outlets. In essence, this makes these lights great for larger tents or greenhouses.
Energy Saving Performance
The HIPARGERO COB LED grow light can replace a standard 500 Watts HPS or MH option. And the beauty of it is that it uses 240 watts only! With such an output, this unit is excellent for 3x 3 ft vegetative coverage hanged at the height of 24 inches or 2 x 2 ft area at the height of 18 inches for flowering.
The MEIZHI deserves mention in our best COB LED grow lights collection. It promises to be “your careful plant’s steward” with its unique functions and ability. We dissect right through this unit to find out what makes it blink when pitted against other lights its category.
Efficient LED Chips
Like any COB grow light worth your money, the MEIZHI uses CREE LEDs to provide high-quality light suitable for most indoor plants ranging from pepper to veggies and cannabis. The integrated chips work to increase the PAR value of the light by boosting your plant’s output.
The MEIZHI has an output of 600 watts. It offers a higher PPF 694 umol/s value. That way, you can rest assured of better light penetration while using lesser energy in the same coverage area. You can use this unit to substitute your 600 watts HPS or MH red or blue grow lights.
Broad Working Temperature
The MEIZHI will help maintain temps inside your grow tent at anywhere between 65° and 95° degrees Fahrenheit so you can cultivate a variety of plants. It has a powerful cooling fan too and a brilliant ventilation design to prevent overheating. Did we tell you that the pricing is on point? Well, now you know!
COB LED Grow Lights Buyer’s Guide
You must make a couple of consideration when looking for the best COB LED grow light to determine if it is the right one for your needs. Ask yourself;
Can the Unit Provide Full Light Spectrum?
You shouldn’t go for a COB that doesn’t offer full light spectrum. See, these lights provide one color of light to match the natural sunlight as possible. So, be sure to choose a model that runs anywhere between 400 and 800 nanometers. Remember, the idea is to provide your plants with environmental conditions that mimic the one on the outdoor to ensure that you get optimal yields.
How About the Heat Dissipation?
Indeed, COBs don’t generate a lot of heat in comparison to their standard counterparts. Even then, you need to make sure that the unit you plan to buy comes with an excellent heat dissipation system. In essence, this means that the piece must have integrated cooling fans to dissipate the heat – the more the fans, the better.
Is Energy Efficient?
You may need to let your COB LED light run for hours depending on the growth stage of your plants. What this implies is that you will have to pay additional fees for your electricity. It, therefore, makes perfect sense to choose a unit that is as energy efficient as possible. It worth noting, however, that COBs are generally energy efficient in comparison to other LED grow lights.
Does the Unit Support Daisy Chain Functionality?
At times you may not have enough power outlets to handle the number of COBs in your tent or grow area. Be sure to check if the model you plan to spend your money on offers daisy chain capability. In other words, you should go for a unit that allows you to connect more than light without using multiple outlets.
Can the Light Support My Plant’s Growth Stage?
A good COB LED grow light should be ideal for all growth stages. However, it is essential to check the phase of development that your unit can support. The last thing that you want in your tent is a COB that can hardly meet the lighting needs of the specific growth stage your plants are in.
We hope that we have helped you pinpoint the best COB LED grow light as per your needs. As usual, we want to make this a comprehensive resource for anything LED grow lights and grow tents so we shall keep updating the info here to make sure it remains as up to date as possible. Feel free to reach out to us for clarification on any of the units that we have reviewed above. For now, over to you!