GE Lighting 69149 Energy-Efficient Halogen 38-watt 570-Lumen PAR20 Spotlight Bulb with Medium Base, 1-Pack 50-watt replacement uses only 38-watts - 2700K soft white light appearance 570 lumens providing cozy, relaxing light Lasts 2.7 years based on 3 hours per day usage Estimated yearly energy costs 4.58 based on 3 hours per day 0.11 per kWh PAR20 indoor spotlight with medium base for use in directional fixtures such as recessed can lighting