Medium base E26 keyless glazed porcelain socket The bottom cap is tapped 1/8IP (3/8 inch diameter) and comes with a set screw for a more secure fit Has two 61 inch long AWM wires rated 150 degree C along with an uninsulated, bare ground wire Measures 1-1/2 inch outside diameter and has a 2-1/16 inch height Rated 660 watts 250 volts and is UL and CSA listed B&P Lamp Glazed Porcelain Medium Base Socket with 61" Wire Leads and Bare Ground Wire - Keyless glazed porcelain medium base (E26) socket, 1/8IP metal cap with set screw, 61" AWM B/W 150 degree C leads with bare ground wire, nickel plated copper screw shell, 1-1/2 inch outside diameter x 2-1/16 inch height, 660 watts, 250 volts. Features Include: Medium base E26 keyless glazed porcelain socket, The bottom cap is tapped 1/8IP (3/8 inch diameter) and comes with a set screw for a more secure fit, Has two 61 inch long AWM wires rated 150 degree C along with an uninsulated bare ground wire, Measures 1-1/2 inch outside diameter and has a 2-1/16 inch height, Rated 660 watts 250 volts and is UL and CSA listed