Best 100W COB Grow Light For Your Plants(Updated 2021)

 Looking for a cool and energy-efficient solution to your entire indoor plant growing needs? Well, a relatively new technology might interest you. The cool and efficient operation, as well as the most full-spectrum light, ensures the proper growth and metabolism of your plant. For the best COB LED grow light for your indoor plants, check out our COB LED grow lights reviews below.

What’s COB LED Grow Light?

Well, COB is shortly abbreviated form of Chip-on-board LED grow lights. Yeah, it means multiple LED chips are directly placed at a single substrate to create a single mega module.

Key Benefits of COB LED grow light includes, better lifespan, more power saving nature, plant oriented highly dense light, low heat-producing nature, and quality spectrum.

What Makes COB LEDs Better?

Before we get to the reviews, let’s take a look at why COB LED chips are better. I’ll keep this brief, since you’ve probably already done the research on this, or you would not have found yourself on this page. This article has more info.

The advantages of chip-on-board LEDs are:

Compactness: far more LEDs fit into a much smaller space, meaning more output from a smaller area
High-Intensity: since more LEDs are packed into a smaller space, the light is more intense, meaning deeper canopy penetration
Design simplicity: only use 1 circuit with 2 contacts to energize all the chips on the COB array, reducing the number of components needed
Lower failure rate: due to lower heat generation and better heat dissipation and fewer welding points (since each chip is mounted directly on the substrate, instead of soldered in place), quality COBs have a lower failure rate
The primary disadvantage is the fact that COB LEDs are not yet available in every color spectrum. Luckily, they are available in the colors best suited for growing plants (white and pink). The first 4 lights below use warm white and cool white COBs, while the final fixture uses pink ones.

ECO Farm 100W Cob Led Grow Light

Features:

The ECO Farm COB grow light uses Sunshine Spectrum (Look like the sunshine white color) for plants, largely accelerate the plant growth. optimize the investment return of commercial plant growing. From a performance point of view; it has done incredible work through a powerful COB. The wide-angle and durable lens shines brightly. And because of the scientific placement of the lens in the COB, it can provide evenly distributed light on our plant canopy. In addition, through this mechanism, they successfully transmitted the light to the deeper and lower canopies. It is a complete full-spectrum light, which has a higher red frequency. Other major advantages include lightweight characteristics, reliable sturdiness, and excellent brightness. Yes, all of these combine to make it one of the most value-for-money COB LED plant growth lights on the market.

Hacienda LED Grow Lights

Features:

Hacienda LED grow lights featuring the latest generation of multi-cob LED technology to push plants, and harvests, to their optimum and beyond with the option to run the unit at 3 different spectrums, so you can give your plants exactly what they need. These functional LED lighting fixtures are made up of multiple ‘modules’ that contain 4 x 3w LED’s and a 1” high-efficiency COB (Chip-On-Board) with a 90° beam angle. Together, these deliver the perfect light spectrum that encourages strong plant growth, greater flowering sites, and improved harvests. The stand-out feature of the Hacienda LED Grow Light is the ability to run in Growth Mode, Bloom Mode, or Full Spectrum Mode. These modes can be run on their own, or in any combination, meaning you can give plants exactly what they need at any phase during their life cycle.

Optic LED Optic 1 XL COB Grow Light (100W / 3500K)

Features:

The Most efficient COB in the Optic LED Lineup coming in at efficacy 2.15. Harnessing the CREE XLamp® CXB-3590 with a glass projection lens to spot beam the light into your desired grow area maximizing your yields. Passively cooled by an overbuilt pin fin heatsink Optic 1 emits very little heat making your environment easier to manage. Optic 1 comes in daylight white 3500k color temperature which does amazing in flowering and does really good in VEG as it has a well-balanced Spectrum. The CXB3590 LED delivers high lumen output and high efficacy in a single, easy-to-use Chip that is designed to last many years. 2.15 umol/watt efficiency rating puts Optic 1 at the Top of the charts in efficiency for LED Grow Lights today.

Why use COB LEDs and not another grow light?

This type of light allows for more LED chips to be installed on the same substrate. They also tend to be cheaper than others and more long-lasting.

In addition to this, they allow for a higher intensity as well as more uniform lighting. They don’t heat up like the HIDs or the SMDs. Their efficient heat sink technology ensures noiseless cooling.

Lastly, they mostly generate white light so your tent won’t look eerily red or purple.

The difference between COB LED and traditional SMD LEDs:

Surface Mounted Device or SMD LEDs are quite popular in the market. However, COB LEDs seem to be slowly taking over. Here are some major differences between the two:

COB LEDs appear more often on the light panel due to the reduced number of components while in SMD; there are lesser LED lights on the same size panel.
COB lights have a higher intensity and tend to be more uniform in lighting. 
The light produced in COB is much denser and stronger.

The COBs are not as bulky as SMDs even with the same lumen density. 
COBs produce less heat than SMDs as they have fewer components and the heat dissipation system is more effective. 

SMDs allow you to change the color of the light while COB only produces a single color light (white). 
Better light distribution and coverage by SMDs.
SMDs penetrate better than the COB LED light.

Apart from that, they are quite similar in the fact that they offer lights of a wide light spectrum range. They both tend to last a long time and they both ensure an energy-efficient operation. However, you can clearly see why a COB LED light can beat an SMD LED any day in terms of efficiency!

Conclusion

All in all, a COB light will help you grow plants in all stages of life due to their wide range of spectrum. We recommend you weigh the pros and cons yourself and choose the best COB LED grow lights yourself. What are you waiting for? Get the best for your plants and buy one of these LED lights, so your plants can grow at the best rates!