This Edison Screw 42 watt Dimmable Energy Saving Halogen Candle light bulb is a direct retrofit for a conventional incandescent candle lamp. The 42 Watt output is the equivalent of a standard 60 watt light bulb. This lamp offers savings of up to 30% on energy usage and offers a lamp life of 2000 hours based on 2.7 hours usage per day. This is an affordable energy saving replacement for a standard incandescent or halogen lamp.