looking at some t5 for lighting a closet that will hold 6 clones for a three week veg period. they will then be transferred to the flowering space which has a 430 watt hps. veg space has to be able to maintain proper temps virtually on its own. that is why i figure t5's. any advice on how many lumens for 6 plants growing straight up (no lst), getting to be about a foot tall?? the closet space is about 4x4x8.