Emergency Light Fixture, Type Double Contact Bayonet Base Incandescent, Constructional Feature Explosionproof, Dust-Ignition Proof, Voltage Rating 120/277 VAC, Lamp Voltage 12 VDC, Wattage 18 W, Lamp Included Yes, Material Copper Free Aluminum (Battery Enclosure, Fixtures, Guards and Pendant Mount), Malleable Iron (Ceiling and Bracket Mount), Finish Epoxy Powder Coated, Mounting Remote, Ceiling, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, Approval UL 1598/844/924, Number of Hub 4, Hub Size 1/2 Inch, Number Plugs 3 Close-Up