is a 250w hps enough to carry three plants through to flowering? (possibly with some accompanying CFLs on the underside) and, could I use a 250w hps to veg my plants? or only to flower them? third question. for 3 - 4 plants should i use a 250w HPS or a 400w HPS my original plan was to use 4 85w CFLs to veg my plants and then I was going to put them under a 400w hps to flower. i am now thinking that I may not need 400w and that 250 would suffice. is there a benefit to using 400w lights over 250w lights when you are only growing a few plants? thanks to any who answer my questions! looking forward to posting here and growing better plants thanks to all of the posters here.