IS241P-48ECA - Medium Base Outer Threaded Porcelain Incandescent Light Socket with Cap Ring - E26 Lamp Base - 1" Base Diameter - 1.375 Inch Overall Height - 48" Wire Leads Terminals - 660 Watt 250 Volts Max - 1/8" IPS Tap Extrusion Mounting - White Porcelain - cULus Listed IS241P-48ECA