i also am growing in a pc case ive developed which is almost the same size as yours sly.... i have 3 60 watt 1600 lumen cfls - so a total of 4800 lumens. I was wonder what the significane of the little white closet shelf things are I see in alot of grow boxes is this just and alternative to the string in a LST grow? I have one of those sitting on my dresser...prolly going to use it if thats the case...anyone no?