i would go with 2 x 400watter, otherwise you will be constantly batteling the temps, plus you could put the extra cash to buying top of the range bulbs/ballast/reflectors rather than budget items....if you can stretch to it, cooltubes or cooled hoods are the way forward.

you could grow 8 plants, 10 at a push. you should be looking at least 12 ounces per crop, and that a low estimate.
just dont get greedy and buy the third light, spend it on 2 better lights and better ventilation.
babystarbud Reviewed by babystarbud on . 2'x8' whats the most light i can rock ive got a 2x8 area thats 16 sq ft im thinking 5 180cfm cfm fans exausting to the attic 3 400 watt hps is that to much / will it bleach my plants and is that enuff cooling / ventilation for 3 400watt lights Rating: 5