EFU Fluorescent Factory Sealed Wall Mounted with FHS1 Explosionproof, Dust-Ignitionproof Class I, Division 1 and 2, Groups C, D Class II, Division 1 and 2, Groups E, F, G Class III 40W Fluorescent Rapid Start, T12 Bi-Pin, 48" 430MA 120-277V, 50/60Hz 3/4 Hub Size Please refer to online catalog for additional information