Gavita Pro 6/750e DE Flex Latest Review

Here is my Gavita Pro 6/750e DE Flex review for you. This light is designed for smaller growers. It is a double ended HPS that is designed for smaller grow rooms or grow tents and lower ceiling heights.

Unlike the Gavita Pro 1000 DE which requires a 10 or more foot ceiling and is designed for warehouse type grows this light works for lower ceiling heights.

The 6/750e DE Flex is also the only double ended HPS that Gavita makes that runs on 120 v which is another reason it is home grower friendly.

Just to keep things honest you should know I only review products I have bought and use and here are a few pics of the Gavita Pro 6/750e De Flex hanging in my grow closet.

The spread of the Pro 6//750 with the HR96 DE reflector is about 3×4.5 ft (90×135 cm) at 2.5 ft distance in overlapping plans, providing light levels of up to 1000 µmol s-1 m-2.
The fixture’s light source is a Gavita Pro 750W double ended HPS lamp, generating 1450 µmol s-1 of light. With a light maintenance of over 96% per 5000 hours you only need to replace it once a year. Mounting is easy because the fixture is balanced and only requires two hanging points.

Gavita Pro 6/750e DE Flex Video Review

The Gavita Pro 6/750e De Flex Is Not Your Grandpa’s HPS!

Although I am not new to running HPS this is the first time running a double ended HPS and I was really surprised by the difference. So superior to a single ended bulb it’s not even funny.

Colors Are More Natural With The DE Flex Bulb

They are bright and the color is different. I also run the HLG 550 and the color is similar with a bit less blue. I dont really see the orange tones I got from single ended bulbs. So my first surprise was the color difference.

After doing some research I found the 6/750 is rated at 2100 kelvin about the same as a standard HPS. However it has a very high CRI (color rendering index) which explains why the colors appear more natural.

Heat Was Not Really An Issue

I had some concerns about heat from a fixture that was not air cooled but I am really surprised to find my grow room running cooler than an air cooled 1000w single ended light. How is that possible? My only explanation is the double ended bulb is more efficient and puts out more energy as light rather than as heat.

High And Uniform Light Output

The Gavita Pro 6/750e DE Flex light output is amazing and even at lower wattage coverage and uniformity are excellent. Penetration is much better too. I am currently running my Gavita at 600w because my plants are only one foot away from the bulb. Even so par readings are well over 1000 micromoles. Surprisingly room temperature in my grow closet is 82 and leaf surface temperature is 79-80 across the canopy.

You should be able to run this light in a grow tent or closet easily if you have adequate ventilation.

More Info On The Gavita Pro 6/750e DE Flex

The bulbs keep 96% of their output even after a year so you dont need to change bulbs often. Gavita also recommends changing the reflector too.

Lamps emit a whopping 1500 micromoles and I have verified this with a par meter. You really can’t use more than 1000 without CO2 so there is plenty of light to spare. The light is very well distributed over the grow area without shadows that regular reflectors often produce.

You can run it at 400W, 500W, 600W, 750W or 825W and match output to your grow space.

Dimensions are 22.4″ x 9.5″ x 10.2”. You will have an easy time fitting and hanging this light. It has only 2 hanging points and if you ever tried to hang a Magnum or Block Buster you will love its compact size.

Some Final Thoughts  On The Gavita Pro 6/750e DE Flex

I am late in the game with double ended HPS because they almost always run on 240 volts. As far as I know this is the only Gavita that can be run at 120. If these had been available earlier I probably would not have switched from single ended HPS to LED.

Here is a video shot 3 days after hanging the Gavita. If you want to follow my Gavita grow it is at:

I give the Gavita 6/750 a definite thumbs up. If you are running single ended bulbs you definitely want to upgrade. If you are starting a new grow this light is an excellent choice. It will match or surpass the best LEDs on the market at a fraction of the price.

See this light on Amazon

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