Do HPS bulbs need a special light fixture, or can I use any old fixture for regular bulbs? I saw some HPS bulbs for sale at Home Depot for like $22 and I thought that would be cheaper than paying $400 at a hydro store.
dude spend the 300 bucks im cheap but one day said fuck it lets do it now my 2 inch plant under my fluros witch was dying is not over a foot tall and bushy i stay by hps all the way