Specification: <br/> <br/>250VAC <br/>Material: Porcelain <br/>3/8" threaded nipple <br/>Total height:95mm~96mm <br/>Ceramic height:31mm~33mm <br/>Bakelite height:12mm <br/>Total length of Iron stent:38mm~39mm( include the height of Iron thread 10mm) <br/>Screw Terminals <br/>Turn Knob ON/OFF <br/>E-26 Medium Base