Sunlite 00643-su sms11/65k 11w super mini spiral cfl light bulb, medium base, daylight sunlite super mini spiral compact fluorescent lamps fit into most standard fixtures and give off a daylight light much like a 40 watt incandescent bulb. These energy efficient cfl lamps can last up to 7.3 years with normal household use of 3 hours a day. This energy saving 11 watt 6500k, medium base bulb offers 600 lumens of light output and has an average rated life of 10,000 hours. Great for floor lamps, desk lamps, ceiling fixtures and most common household lighting needs.