Maxim Lighting 18250PL 2 Light Optic Outdoor Wall Light Width: 8" Projection from wall: 3.8" Height: 11" Height from Center of Opening: 4.5" Backplate: 7"W by 6"H. Exterior wet rated | ADA certified Uses two 20w MR16 GX5.3 12 volt halogen light bulbs Power supply required: 12 volts Safety certification: UL (Underwriter's Laboratory) listed