The room may be any size, but you should block off a section that is about 3x3 of floor space and at least 5 feet high to use that size light correctly. Hang Panda Film to create your space most easily, or build a box.
stinkyattic Reviewed by stinkyattic on . How big should the room be.... I have a 400 watt hps how big should the grow room be for this light?:rasta: Rating: 5