Westinghouse 0501800 43W SL19 Halogen Cut Glass Light Bulb with Medium Base Cut glass, halogen, medium base, 43 watts, 120 volt Bulb life of 1,000 average rated hours Perfect for table and floor lamps, Ceiling fans, porch lights, and outdoor lanterns and completely dimmable Estimated yearly energy cost: $5.18 (based on 3 hrs/day, 11/kwh. Costs depend on rates and use) Light appearance: 2900K