well considering the space you could easily use 2 1000 watt lights but a bit big of an area for only 4 to 8 plants have you considered buying just one 1000 light and only using half the space in the room.
bejay Reviewed by bejay on . HELP! 250 HPS or 400 HPS??? I will be flowering 4 plants, maybe 8, in a 4'x8'x8.5' high space that is well ventilated...Want to know whether I should go with 2- 400 watt HPS or 4 250 Watt HPS? Rating: 5