Leviton Lamp Holder, 1-Circuit, Keyless, Incandescent Lamp, Medium Base, 600 V, 660 W Wattage, Screw Connection, Urea Housing Material, Twist-Lock Mounting, White, Dimensions: 4.5 H x 4.5 in W x 2.12 in D, Suitable for: 3-1/4 in and 4 in Outlet Boxes Unit: EA UPC: 078477103180 Model Number: R50-08829-CW4