EarthTronics FP3823501B 23-Watt 5000K PAR38 Flat CFL Floodlight, Natural White Save money and the earth-this bulb only uses 23-Watts of power and outputs the equivalent light of a 90-Watts incandescent bulb UL listed for wet location 10000 hour average rated life means you'll almost never have to change bulbs Utilizes an advanced electronic ballast so the bulb reaches full brightness quickly 7 year limited warranty based on normal residential usage (3 hours average usage per day/7 days per week)