Sunlite 05295-su sl7t/27k 7w jar cfl light bulb, medium base, warm white sunlite jar compact fluorescent lamps fit into most standard fixtures and give off a warm white light much like a 25 watt incandescent bulb. These energy efficient cfl lamps can last up to 0.9 years with normal household use of 3 hours a day. This energy saving 7 watt, medium base bulb has an average rated life of 10,000 hours.