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720W COB LED Grow Light

LED Grow Lights replace HID 1 to 1

New Full Spectrum LED Grow Lights are the most powerful LED grow lights on earth and replace HID Grow Lights 1 to 1.

These revolutionary grow lights provide you with K4 COB LED Grow Lightgreater light intensity and efficiency than other plant grow lighting systems. With the revolutionary full spectrum you will grow superior strains and maximize your yields indoors while saving yourself money.




What is S-Mars Spectrum?

S-Mars Spectrum is a unique LED grow light spectrum developed specifically for plants. Yes, we know that you’ve probably never heard of it, and that’s because it's the very latest in COB LED technology, and so we are pleased to bring you this first.

S-Mars Spectrum allows for a greater spectrum range compared to single color LED’s offered by the current market.

Graphs Comparing the Wavelengths Plants Respond to vs. the Wavelengths the Human Eye Responds To

The S-Mars expanded range falls between 350 and 850nm in series with 600~670nm and 460nm in peaks, using only one chip to accomplish the task.

The spectrum offered by the current markets LED’s are only targeted in the 460nm and 660nm peaks, as compared to the S-Mars Spectrum.

Through an extremely powerful, single S-Mars COB LED chip you can enjoy true full spectrum output. One S-Mars LED could accomplish tasks which take other manufacturers 11 or 15 individual colored chips or more to reproduce. This increased spectral range allows for performance that actually exceeds the growth rate of the sun itself in an indoor environment.

In the current market, LED spectrum technology has improved dramatically but had yet to completely replace HID grow lights.

K4 COB LED Grow Light

After extensive testing, it was proven that the S-Mars Spectrum had the same amount of light energy as the sun. When PAR levels were tested and compared, it was confirmed that this technology would replace the light energy needed by plants from the sun.

What you should know

1. The newly-developed and discovered S-Mars 90 Degree Lense Diagram for K4 COB LEDCOB largely combines the advantages of HID lamps and the sun's spectrum. It produces twice as much luminous efficiency compared with current blue and red grow light. Through special 90 degree glass lenses the output has been greatly optimized.

2. The specialized Prism Lens is designed Prism Principle Diagram for K4 COB LED Grow Lightaccording to the prism principle. It can refract the most suitable wavelengths and filter out spectrum's that are useless to the plant. This greatly improves the already superior spectrum which will result in accelerated plant growth. 

3. These lenses will not fade and haveRefractive Index Diagram for K4 COB LED Grow Light added photocatalyst’s to the surface of each lens. This will help resolve dirt issues on the lens, which will maintain a high refractive index time after time.


4. Highly Efficient COB LED Design –  The glass 30% Cooler Diagram for K4 COB LED Grow Lightlens and heat sink are designed as a three-in-one module, insuring the working temperature is kept low. The heat-dissipation rate is 30% higher and can be used in many grow environments.


If you are going to invest in next generation Full Spectrum LED Grow Lights, the G-Series Full Spectrum LED Grow Lights would be your best buy.

Out-perform leading brands and add huge value to your grow through incredible power savings, higher grade product and unbelievable yields.

View our Full Spectrum LED Grow Lights with far red.

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Theo Pienaar - May 17, 2019

Hi my grow area is .600 × 1.8 floor space. If I use a cob light which one will cover the area

Anita - February 5, 2019

We have continuously received fast, efficient and extremely helpful service from Grow Guru. They are always friendly and ready to help with advice related to products and their implementation. They are clued up with all things related to hydro and have gone out of their way to assist us when we got stuck and didn’t know whats going on.
We finally have our first harvest and it exceeded our expectations.
- Thanks Grow Guru!

Ron - May 17, 2019

In a grow tent 1.5m x 1.5m for flowering, will you go 2 x G4’s or 1 x G9?

Marcus Van Staden - May 17, 2019

Hi There.

How many lights would you need for a 6mx3m Room?

Chris - November 11, 2018

Wow awesome service with a smile super friendly just what a store need and the nation

claude - November 11, 2018

i would like to run a led sutup for a 5m x 4 m room

Corne Henning - November 11, 2018

What is the expected lifespan on the cob lights?

JW van Huyssteen - August 3, 2018

Shot for the great service. Got my goodies on Monday after ordering on Friday. Will definitely use these guys again.

Marietjie - June 6, 2018

Is it possible to connect the lamp to a solar panel?
Thank you

Andrew - June 6, 2018

Would like a price on a K4 grow light.Thank you.

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