SERIES FF7200S 7 in. Aperture Recessed Shallow Plenum Compact Fluorescent Downlight 13, 18, 26 Watt Horizontal Lamps. Rugged 20 gauge die formed steel with corrosion resistant finish. Suitable for a maximum ceiling thickness of one inch. Ballast Type: Electronic Bulb: (2) 13W CFL Bulb Wattage: 13 Color: Clear Height: 4 in. Industry Standards: UL Damp Locations Length: 18 in. Voltage: 120 Width: 7-3/4 in.