Goodlite G-10832 32W T9 Circline 12-Inch Wide Fluorescent Tube Light Bulb, G10Q BaseCool White 4100k 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 4100K Brand Cross Reference FC12T9/CW/RS - TL9C12 Cool White - FC12T9/CW - FC12T9/1C 2200 Lumens