TCP 28968RP 10000 Hour 2700 Degree Kelvin 68-Watt Compact Fluorescent SpringLamp CFL uses standard socket. bulb is large (9.25 Inches by 3.8 inches) Energy Used: 68-watts (equivalent to a 300-watt standard incandescent light bulb) Uses 75% less energy compared to a standard incandescent light bulb Brightness: 4,200 lumens Life Hours: 9.1 Years