Universal B432I277L-A Triad Electronic Fluorescent Ballast, 4 Lamp, 32W T8, 277V

Electronic Ballast Open Circuit Voltage: 550 VRMS Sound Rating: Class A Class P, Type 1 Outdoor, Tyle HLYou may also like Universal B254PUSV3PLD Fluorescent Ballast, 2-Lamp, 54W, T5 F54T5/HO, 120-277V.