Leviton Incandescent lampholder features single-circuit phenolic body. It has two black and white 6-Inch leads that are stripped at the end. The pigtail lead has a size of 18 AWG temperature rating of 60 degree Celsius and voltage rating of 600 volt. Weatherproof lampholder has a voltage rating of 250 Volts and power rating of 660 watt. It measures 1.640 inch diameter x 2.120 inch. Lampholder meets CSA/UL standards.