uh magnet im guessung seein theres nothing digital on it and there looks like there a big magnet on it lol. but it is new it has a 2 yr warranty....
iblodro4220 Reviewed by iblodro4220 on . Ballast And Light ?'s i have a 250 watt MH Conv. and i was wondering if its cool to keep it on the full 18 hrs or if u give it a small break? and is the ballast supposed to get super hot??:rastasmoke: Rating: 5