Sunlite 05321-su slg25/g30/50k 25w globe cfl light bulb, medium base, super white sunlite globe compact fluorescent lamps fit into most standard fixtures and give off a super white light much like a 100 watt incandescent bulb. These energy efficient cfl lamps can last up to 9.1 years with normal household use of 3 hours a day. This energy saving 25 watt 5000k, medium base bulb offers 1125 lumens of light output and has an average rated life of 8,000 hours.