GE Lighting 61922 Energy Smart LED 10-Watt (50-watt replacement) 500-Lumen PAR30 Floodlight Bulb with Medium Base, 1-Pack 50-watt replacement uses only 10-watts Provides 500 lumens Lasts 22.8 years based on 3 hours per day usage Estimated yearly energy costs $1.20 based on 3 hours per day $0.11 per kWh $110 in energy savings over the life of the bulb based on 3 hours per day usage.Dimmable LED Bulb.