GE Lighting 40793 Energy-Efficient Halogen 45-watt PAR38 SpotLight Bulb with Medium Base, 1-Pack Uses 45 watts 600 lumens providing comfortable, inviting light Lasts 5.4 years based on 3 hours per day usage Estimated yearly energy costs 5.42 based on 3 hours per day 0.11 per kWh PAR38 outdoor spotlight with medium base for use in security and wet rated fixtures