First grow!!!! Low Ryder Purple Gems!!! Using about a 2' x 1.5' x 1.5' area, I am currently running 4 cfl (2 different spectrums) and want to switch to an HPS. I am gonna need to go with internal ballast due to space limitation. I want to go with a multi spectrum HPS what power should I be looking for? Also how much heat do these give off? Will the same lamp socket and wiring work? Thanks!!