Westinghouse 0602000, 32 Watt T9, 12 Inch Diameter Circline 4100K Fluorescent Tube Light Bulb Watts: 32, Volts: 120 Color/Kelvin Temperature: Cool White/4100K CRI: 62, Lumens (Brightness): 1940, Rated Lifetime Hours: 10000 Base: 4-Pin