bizzy323 Well-Known Member Joined Apr 5, 2005 Messages 478 Reaction score 31 Jun 12, 2005 #1 can i use a 400watt hps bulb on a 600watt ballast system?
Hick Git "R" lit Joined Apr 19, 2005 Messages 12,835 Reaction score 12,613 Jun 12, 2005 #2 ..no...ballasts must match bulb .
