If you do decide to buy a HPS system. I would go with the 400 or the 600watt. I'm fixin' to upgrade to the 600 digital electronic.Right now,I got 3 400 watters and 2 of them are HPS and 1 MH.That would be HPS=S51 ballast,and the MH=S54 ballast.Good luck on making ya mind up! And your decision to grow! Are your buddies gonna know your gonna do a grow? If so? Be very careful!!!!! Make damn sure you don't piss them off! Bad things could come of that!

Ga Grown!