Sunlite 05367-su sl23par38/g 23w colored par38 reflector cfl light bulb, medium base, green sunlite colored par38 reflector compact fluorescent lamps fit into most standard fixtures and give off a green light much like a 100 watt halogen 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 23 watt, medium base bulb has an average rated life of 8,000 hours.