Specification: <br/><br/>250VAC <br/>Material: Porcelain <br/>3/8" threaded nipple <br/>Total height:75mm~76mm <br/>Ceramic height:31mm~33mm <br/>Bakelite height:12mm <br/>Length of Iron stent:11mm~12mm <br/>Screw Terminals <br/>Turn Knob ON/OFF <br/>E-26 Medium Base