EFU Fluorescent Factory Sealed Explosionproof, Dust-Ignitionproof Class I, Division 1 and 2, Groups C, D Class II, Division 1 and 2, Groups E, F, G Class III 60W Fluorescent Rapid Start High Output, T12 Recessed Double Contact, 48" 800MA 120-277V, 50/60Hz 3/4 Hub Size Please refer to online catalog for additional information