GE Lighting 89623 Energy Smart Spiral CFL 15-Watt (60-watt replacement) 900-Lumen T3 Spiral Light Bulb with Medium Base, 1-Pack $49 in energy savings over the life of the bulb based on 3 hours per day usage 60 watt replacement uses only 15 watts Estimated yearly energy costs $1.81 based on 3 hours per day $0.11 per kWh Lasts 9.1 years based on 3 hours per day usage T3 spiral shape with medium base for use in table lamps and enclosed fixtures