DankyPanky
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- Apr 13, 2016
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I switched gear last year from traditional 1000w setups, and now I run 3x Gavita 6/750s in my flower room (which is approximately 12'x8'x9'), and each light gets a footprint of around 4'x5.5', with 6x plants under each in two rows of three. They put out a ton of light, and I like the features of the controller too, with its temp probe, ramp up and down times, auto dim settings based on temp, and more.
With the three lights set at 110%/825w the flower room gets up to about 88* if I don't vent the heat (basement, mountains), but I run an 8" exhaust line up along the ceiling with an inline fan to keep it down to manageable temps and it works fine, plus four fans to move air around (2 wall + 2 box). May have to take additional cooling steps as summer approaches, but I'll cross that bridge when it happens.
Then I run a fourth 6/750 for the veg room. It's on ratchet straps and not connected to the controller (the three in the flower room are mounted as close to the ceiling as possible and never move). I start each cycle with the veg light at 400w and down low then raise the light and its wattage throughout the veg cycle, so that it's at 105%/795w when they flip and see 110/825w% in flower. The extra light that spills out beyond the 5x6 veg area is also enough to light up two 2x4 trays where my clones and babies and mothers are.
Heat is the only issue, and it's manageable. They are very impressive lights, IMO. If I'm able to expand this year I'll get some of the 315w setups to supplement these, and to better control heat and get that Philips Blue spectrum, too. Theyr're the only thing I've seen which compete with the Gavitas. Also, presently, I run them in 110v mode as I haven't yet had some 220 ran. Works great at either voltage.