EATON S1174W-SP-L 660-Watt, 250-Volt Plastic One Piece Keyless Switch Ceiling Receptacle Lamp Holder, White One piece keyless switch plastic ceiling receptacle lamp holder Molded of high-temperature thermoset plastic to reduce breakage Mounts on 4-inch outlet boxes with breakout for 3-1/4-inch box mounting Available in white color Measures 4-5/9-Inch diameter by 1-3/5-Inch height One piece keyless switch plastic ceiling receptacle lamp holder Mounts on 4-inch outlet boxes with breakout for 3-1/4-inch box mounting Available in white color Measures 4-5/9-Inch diameter by 1-3/5-Inch height