G8LED Grow Light Review

Nearly a decade of research has produced one of G8LED’s most innovative and technologically advanced grow light series’ to date: The MEGA LED. Manufactured and tested in the USA by Dorm Grow, there are a whole host of features which make this particular grow light truly exceptional. For one, the optimal 8-band plus Infrared (IR) and Ultraviolet (UV-B) capabilities allow for higher yields and faster growth. In this article, we will dive into our G8LED grow light review to show you why this light is a top quality choice for both novice and professional indoor hydroponics growers.

Dorm Grow G8LED 600W MEGA LED Grow Light

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Image result for green checkmark  “Best LED Grow Light” by HIGH TIMES (2016, 2017)
Image result for green checkmark  Amazing Efficiency: Optimal 8-Band Wavelength Ratio + IR and UV
Image result for green checkmark  No ballast needed – just plug in
Image result for green checkmark  Coverage for 12 sq ft (4’x3′) w/ a PAR value of 960umoles at 14″
Image result for green checkmark  Made in USA LEDs + local customer service


Image result for red x mark  A few customers report LED burning out

Benefits of LED Grow Lights

As LED lighting continues to evolve into cheaper and more efficient options, this innovative technology is on track to replace traditional light sources. Some of the benefits of switching to LEDs include: LED lights last longer than other light sources, requires less maintenance, and doesn’t give off nearly as much heat as the alternatives. Additionally, LED grow lights run quietly, produce healthier and more vibrant plants, are more energy-efficient (saving you money on electricity costs), and light bulbs don’t need to be replaced nearly as frequently.

G8LED 600 Watt Grow Light Overview

When it comes to LED lighting, there are still a few kinks to iron out. One of the biggest concerns for growers is that the yields produced by LED grow lights often don’t match those produced by high-pressure sodium (HPS) bulbs. However, this light solves that problem with its unique ability to match the yield of HPS.  In fact, G8LED grow lights have consistently been the highest yielding LED grow light system on the market.

G8LED’s 600W MEGA LED grow light is meant to replace a 1000W MH/HPS system. It has proven to have the most efficient spectra paired with a dense network of diodes. This brings a balanced light energy to your plants.

After years of research, G8LED has perfected its color ratio with 8 bands ranging from 380nm to 780nm, including Ultraviolet (UV), Infrared (IR), and 6000K white. This expansive spectrum eliminates unnecessary diode usage as well as colors which do not enhance yield. As a result of the optimal spectrum, plants experience higher quality flowering and maximize yield per unit of electrical consumption.

It may come as no surprise that G8LED has won many awards for their advanced grow light technology. In 2016 and 2017,  High Times magazine voted this model its “Best LED Grow Light.” Check out these details for a better look into why G8LED is continuously voted among the top.


Dimensions: 21 inches x 14 inches x 3 inches (52cm x 36cm x 7.6cm)
Weight: 22 lbs
Veg Coverage: 4′ x 5′ (122cm x 153cm)
Flowering Coverage: 4′ x 5′ (122cm x 153cm)
Power Draw: 380 Watts
PAR Value: 1480 umol
Amperage: (110V) 3.3Amp;  (240V) 1.6Amp
HID equivalent: 800-1000 Watts

G8LED 600 Watt MEGA LED Grow Light

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Highest Yielding LED Grow Light System

 G8LED’s MEGA 600W LED grow light’s ability to match the yields of HPS (high-pressure sodium) bulbs make it stand out among the competition. Its designed for both vegetative growth and flowering without the use of a switch. This allows the grower to maximize the grow lighting’s potential 100% of the time.

The optimal 8-band ratio has a perfect balance of wavelength usage. G8LED determined that using more than 8 wavelengths was just wasting energy on unnecessary color that had no benefit to photosynthesis. The 8 color bands plus UV and IR dish out a better spectrum that will nurture plant growth and promote healthy, high yielding plants. Plus, you can really boost the yields by incorporating the two 90W Red Flower Boosters (during the flowering phase of growth).

90W Red Flower Booster

Touted by the G8LED as a valuable addition to the Dorm Grow 600W Mega LED grow light, the 90w Red Flower Booster was made to perfectly complement the 600w flower/veg light. The 90W diodes utilize a dense network of 1-watt chips to maximize yields during the flowering phase.

By hanging the Red Flower Booster right next to or below the main panel, you are able to penetrate up to 60 inches beyond the canopy. You can hang multiple units 3 feet above the center in order to increase the flowering area per light (from cross coverage).

  • All Red 630nm & 660nm can be added to any LED, CFL or HID system.
  • Adds 920umoles of PAR value at 12 inches.
  • Utilize 1 90w flower booster per 10 square feet of growing area.
  • 5 lbs.
  • 10 inches in diameter.
  • 3×3 feet of flower coverage.

The light consistently receives 5-star feedback from its satisfied customers base. Dorm Grow offers a 90-day money back guarantee and 2-year warranty on all its G8LED grow lights.

Growing Tips

Proper usage will lead to optimal growth and maximum yield. Avoid common mistakes like keeping the grow light too far from or too close to your plants (too far can cause your plants to become leggy, while too close can stunt grow and burn vegetation). When using the G8LED 600W MEGA LED grow light,  you should hang between 16-36 inches from the top of the plant canopy. Be sure to monitor carefully and adjust your lights accordingly as the plants grow. If you want taller plants, placing the lights further away will cause your plant to stretch in order to reach the light source. Keep the light at a closer distance if you don’t want your plants to grow taller or if they are flowering. Decreasing the distance will lead to shorter, fuller plants. If using the 90W Red add-on, this should be placed at the same level as Veg/Flower lights when the light cycle is 12-12.

Vegetative State: This is when you will see the biggest benefits of using LED. You’ll save significantly on electricity and can produce high-quality growth if you follow proper instructions.

  • 4-6 weeks of a cycle with 18 hours of LED light per day and 6-hour rest (dark) period.

Flowering: Here we mimic the seasons by transitioning the light cycle from 18 hours to 12 per day.

  • 12 hours of light followed by 12 (uninterrupted) hours of darkness can produce results in 2 weeks.
  • Utilizing the 90W Red light in this stage can yield more robust flowering.

During this stage, it’s common to see quick results followed by slowed growth and progress. Don’t over-water or give your plant’s too much fertilizer at this time. The LED lights will have a stronger effect if you let them be.

Cloning: Clones requires lots of light. Follow these instructions for best results.

  • During vegetative state, maintain 18-20 hours ON cycle for 2-3 weeks to see results.


Thanks to G8LED’s advanced technology, these grow lights only give off 10% of the heat that traditional bulbs emit. This means less water evaporation and less watering for you. 

An added benefit of lower heat emission is the opportunity to better regulate temperature. Ambient room temperature can stay around 82 degrees during lighting periods and drop to 60-65 degrees in dark periods. It also means better conditions inside grow tents and grow cabinets


G8LED lights enhance photosynthesis and the overall efficiency of your plant’s growth. While nutrients are essential for healthy plants, you don’t want to overdo it (a common problem with new growers). Every stage in the plant’s life requires a different diet and with LEDs, you have more control over the growing environment. LEDs – like the ones from G8LED – means less water and no need for plant hormones to stimulate growth.

Customer Service

When it comes to serving their customers, Dorm Grow/G8LED goes above and beyond. They continually take into account their clients’ feedback and adjust their products to meet expectations.

If you’re worried about pulling the trigger and making this large purchase,  you can take comfort in the 90-day money back guarantee and 2-year warranty the company offers.  All services are provided directly through California-based Dorm Grow/G8LED. 

G8LED Grow Light Review: The Bottom Line

The G8LED 600 Watt MEGA LED grow light has everything you want in a light: high quality optimal 8-Band wavelength ratio spectrum with Infrared (IR) and Ultraviolet (UV), cool to the touch heat dissipation features,  and a 2-year warranty with stellar customer service at your disposal.  The Veg/Flower light is ideal for every stage of the growing cycle and provides intense coverage for 18 square feet of floor space. For even more power, the two 90W Red Flower Boosters penetrate up to 60 inches past the plant canopy to provide even further coverage while fully maximizing yield. Despite its capabilities, Dorm Grow/G8LED made their lights with simplicity in mind; its very easy to operate while also providing all the efficiencies required of a top-shelve light. 

While it may be more expensive than those Chinese-manufactured LED grow lights on the market today, you are really making a smart investment when you buy a high quality, USA-made G8LED. The company has done their research and taken customer feedback into consideration when designing this light. As a testament to the quality of the lights they have produced, G8LED has consistently earned five-star feedback from their satisfied customer-base. So spend a few extra bucks and get the best. You won’t be disappointed!

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Thanks for reading our G8LED Grow Light review. Feel free to browse through other uPONICS pages, such as Hydroponics System, Hydroponics System ReviewsGrow Lights for Weed, LED Grow Light Reviews, Hydroponics Herbs, and AeroGarden Marijuana Growing.