Emerald P600TW 9-3/8-Inch Square 75-Watt Ceiling-Light-Fixture Kit Light-fixture kit for a variety of recessed lighting applications 9-3/8-inch square white trim; 9-inch square albalite glass lens Low-profile design; thermally protected and UL approved for damp locations Easy installation; fits 2-inch-by-6-inch joist construction; uses a 75-watt bulb (not included) Measures 9-3/8 inches long by 9-3/8 inches wide