Dude thats a nice idea to who ever came up with it.......I usally try to do that kinda set up when i grow my plants to 3ft tall.........But i got a thing that i rigged up my self where 12 2foot long tubes can go into 1 circle all most like how a gatlan gun barrle is ........puts off 14,000 lum's.. but does great for me.......Im not really in to HPS im into fluro ........