can i use a 400watt hps bulb on a 600watt ballast system?
bizzy323 Well-Known Member Joined Apr 4, 2005 Messages 486 Reaction score 37 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 12,839 Reaction score 12,622 Jun 12, 2005 #2 ..no...ballasts must match bulb .
