Rebaydo 2pcs E17 Male Solderable Copper Cap made of copper for long-life reliable electrical connections and designed as a solderable replacement for rusted, corroded, or old lamp holder sockets. Features E17 base configuration with dimensions of 0.77 inch height, 0.65 inch top diameter, 0.69 inch base diameter, and 0.62 inch inner diameter. Rated for 110V-240V operation at 50/60Hz with up to 2200 watt capacity. Operating temperature range is Celsius -30 to +170 with environmental temperature range of Celsius -20 to +70. Operating humidity range of 30%-65% with IP5 protection class. CE and RoHS listed.