M mrweed Active Member Dec 24, 2008 #1 i've got a 300 W HPS bulb just sitting around so i need a ballast for it but i cant seem to find a 300W ballast online.... so could i use a 400W ballast? if so how much should that cost me at like home-depot
i've got a 300 W HPS bulb just sitting around so i need a ballast for it but i cant seem to find a 300W ballast online.... so could i use a 400W ballast? if so how much should that cost me at like home-depot