11W G23 UV-C Germicidal 254nm Lamp Bulb 120V AC Ballast Kit Air Purification - Kills up to 99% Germs 11W G23 UV-C Germicidal 254nm Lamp Bulb 120V AC Ballast Kit 11W G23 Base, 9 1/4" Single Tube UVC Germicidal lamp ; Rated Life: 9000 hours Ballast : 120V AC with socket and attached wires & holder