5 Best COB LED Grow Lights – Buyer’s Guide & Reviews

Thomas Angas by Thomas Angas | Last Updated: April 8, 2021

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Choosing the best COB LED grow lights can be a daunting task. There are many options out there, and it’s difficult to know which one will work for you.

Luckily, we’re here to help!

This guide is going to go over what you should look for when they’re buying a COB LED Grow light as well as how much money you should spend on them.

We’ll also include reviews of our favorite models so that you can find something that fits your needs without having to do all the research yourself!

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The Best COB LED Grow Lights

Below we’ve picked out a few our favourite COB LED Grow Lights based on form, function and price.

1. CF GROW Cree High-Intensity 200W Full Spectrum Cob Led Grow Light

The Cree High-Intensity 200W Full Spectrum Grow Light is a high quality, full spectrum LED grow light with the latest in COB (chip on board) technology.

This unit features the most advanced LED chips that are currently available and has been designed to provide your plants with an optimal amount of energy while using as little power as possible.

The Cree High-Intensity 200W Full Spectrum Grow Light provides you with all of the wavelengths that your plants need for maximum growth and health. This grow light will cover up to 4 square feet when hung.

2. Roleadro 400W COB Full Spectrum Led Grow Light

A 400W full spectrum COB led grow light that emits a wide range of wavelengths for optimal plant growth. The unit comes with an aluminum substrate and two cooling fans to keep the temperature down, while an on-off switch allows you to control the power going into the light. It is made of high quality Epileds and has a lifespan of 50,000 hours. This is one of the best grow lights for indoor plants!

3. UFO Led Grow Light, Growstar 300W

Growstar 300W LED Grow Light is an all-in-one grow light that includes everything you need for your indoor plants to grow. It uses the latest technology and high-quality materials to deliver a powerful, consistent spectrum of full-spectrum light, which can help improve photosynthesis and plant growth.

4. Hipargero HG450 LED

Hipargero HG450 LED grow light is a full spectrum LED grow light with the best wavelengths for plant growth, including 410-730nm and 440-660nm. It uses 10 pcs 5W CREE LEDs and 4 pcs 100W Epileds COBs to deliver an outstanding output of 450W at 200W actual power input.

This full spectrum LED grow light provides perfect lighting for all phases of plant’s life cycle, from seedling to flowering. The 90 degree adjustable hanging kit makes it easy to hang this unit in your indoor garden.

What Are COB LEDs?

COB stands for chip-on-board and refers to how the LED chip is mounted onto the board and is the newest generation of LED technology and boasts some impressive stats.

For a start COBs have a much higher lumen per watt ratio than traditional HID lights, which means that you can get more light for less power consumption as well at using bulbs with an average lifespan up to 50 times longer!

The Differences Between COB LEDs And Traditional SMD LEDs

While both COB LEDs and traditional SMD (Surface Mounted Device) LEDs have a whole host of things in common, there are a few key differences.

COB LEDs are much more powerful than SMD LED lights and emit a wider spectrum of light, meaning that they offer the best performance for plant growth.

COBs also have better thermal properties which mean less power is required to cool them when in operation so you can get away with using smaller fans!

All this combined really helps plants grow that bit better!

Why Choose COB LED Grow Lights?

There are a number of reasons that many growers are switching to COB LEDs in their setups, we’ve listed a few below:

Light Intensity

COB LED’s produce the perfect intensity for plant growth. For example, as COBs emit a wider spectrum of light they are better at penetrating through and reaching those deep-rooted plants that would otherwise be shaded by traditional bulbs with limited spectrums.

Heat Output

COB LEDs produce an amazing light output without generating significant heat unlike say CFL grow lights. COBs produce less wasted electricity which equates in higher energy efficiency – saving you money with your power bills!


COB LEDs are the future of indoor plant growth and many growers have already made their switch. There is no need to search anymore, we’ve done all your research for you!

The Best COBs? With so much choice on offer, it can be hard picking out which one will suit best – that’s why we’re here with our guide.

Thomas Angas, the founder of Authority Gardening lives with his wife and two darling pups. He spends his free time writing, hiking and learning how to become a better gardener. He launched Authority Gardening in 2017 to help people all over the world their gardens grow.