Goodlite G-10830 T9 Circline 8-Inch Wide Fluorescent Tube Light Bulb, G10Q Base, Daylight 6500k Gu10 4 Pin base, 8"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 FC8T9/DL/RS - TL9C 8W Daylight - FC8T9/DL - FC8T9/1C 1200 Lumens