Product DescriptionLeviton Lamp Holder, 2-Circuit, Series: Electrolier, 250 W Lamp, 250 V, Incandescent Lamp, Medium Base, 3-Terminal Screw Terminal, 1/8 in IPS Tapped Bushing With Set Screw Mounting, Phenolic Body, Aluminum Shell, Thermoplastic Knob, Brass, Polished Gilt, 1.38 in Overall Diameter, 2.56 in Overall Depth, UL E3810, CSA LR-1863, Turn Knob Access. .From the ManufacturerLeviton's industry leading locking devices, such as our Black & White line of industrial grade plugs and connectors and our V-0-Max line of industrial grade flush receptacles, offer superior performance, long lasting reliability and other features that are backed by a lifetime warranty. 15 Amp, 125 Volt, Flanged Inlet Receptacle, Straight Blade, Industrial Grade, Grounding, White.