GE Lighting 80890 Energy Smart Spiral CFL 26-watt 1700-Lumen T3 Light Bulb with Medium Base, 1-Pack 100 watt replacement uses only 26 watts 1700 lumens providing fresh, energizing light Lasts 11.0 years based on 3 hours per day usage Estimated yearly energy costs 3.13 based on 3 hours per day 0.11 per kWh 97 in energy savings over the life of the bulb based on 3 hours per day usage