Sunlite 05518-su sl65/27k/mog 65w spiral cfl light bulb, mogul base, warm white sunlite high wattage spiral compact fluorescent lamps give off a warm white light much like a 250 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 65 watt 2700k, mogul base bulb offers 4300 lumens of light output and has an average rated life of 10,000 hours.