"METALUX" FLUORESCENT STRIP LIGHT *T12 *4 ft. *2 lamp *40 watt *120 volt commercial electronic ballast *Baked white enamel *Prewired flip up socket design cuts installation in half *4-1/4" channel width *Uses 2 F40WT12 lamps (not included)*Linear disconnect system *UL listed, IBEW labeled *Replaces Ace no. 31255