GE Lighting 25186 Energy Smart Spiral CFL 20-Watt (75-watt replacement) 1250-Lumen T3 Spiral Light Bulb with Medium Base, 10-Pack 75 watt replacement uses only 20-Watt 1250 lumens providing fresh, energizing light Lasts 9.1 years based on 3 hours per day usage Estimated yearly energy costs $2.41 based on 3 hours per day $0.11 per kWh $60 in energy savings over the life of the bulb based on 3 hours per day usage