Air Purification 18W 2G11 UV-C Germicidal 254nm 2G11 Base Lamp Bulb 120V AC Ballast Kit 18W 2G11 UV-C Germicidal 254nm Lamp Bulb 120V AC Ballast Kit 18W 60V - 2G11 - Single Tube 4-PIN UVC Germicidal lamp ; Rated Life: 9000 hours Ballast : 120V AC with socket and attached wires & holder Lamp Length - Inches: 8.9