GE Lighting 87459 Energy Smart Bright From The Start CFL 25-watt 1600-Lumen A23 Light Bulb with Medium Base, 1-Pack 100 watt replacement uses only 25 watts 1600 lumens providing strong, vibrant light Lasts 5.5 years based on 3 hours per day usage Estimated yearly energy costs 3.01 based on 3 hours per day 0.11 per kWh 2700K soft white light appearance