GE Lighting 72310 71-Watt 1010-Lumen General Purpose BT14.5 Halogen Light Bulb, Soft White Color temperature rating of 2850 K Halogen lamp will provide up to 2.7 years of use on average Approximate energy cost per year with typical use is approximately $8.55 Provides approximately 1010 lumens of light, illuminating your environment around you Using the 71-Watt Halogen lamp provides about 3000-hours of rated running life, meaning replacing your bulbs less often