Leviton White Porcelain Incandescent Lampholder with Grounded Outlet is a versatile and durable lighting solution designed for incandescent bulbs. This white porcelain lampholder features two screw terminals and a removable interior, making installation quick and hassle-. It has a 4-1/2 inch outside diameter and includes knockouts that fit both 3-1/4 inch and 4-inch outlet boxes. The lampholder comes complete with captive mounting screws, a short chain, a 3-foot braided cord, and a belled end for added convenience and safety. Model Number: 000-09716-00C