Goodlite G-10833 32W T9 Circline 12-Inch Wide Fluorescent Tube Light Bulb, G10Q Base, Daylight 6500k Gu10 4 Pin base, 12"Inch Diameter,Primary Application: Standard 12,000 Hour Average Lamp Life - Can Last Over 10.9 Years - Burns Cooler Than Incandescent Pleasing, Soft White Light - Color Temperature 6500K Brand Cross Reference FC12T9/DL/RS - TL9C12 Daylight - FC12T9/DL - FC12T9/1C 2200 Lumens