ROBERTSON 3M10005 SP2 /A Fluorescent mBallast, Preheat Start, 120Vac, 60Hz, Normal Ballast Factor, NPF; Operates the following lamps 1 F14T8, F15T8, F18T8/24, F18T8/26, F18T8/28, F18T8/30, F14T12, F15T12, F20T12