Brightness Quantity: 600 lumens. Energy Info: $5.18 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 43 watts. Package Info: 4-Pack. 4. Bulb Info: Both. Halogen. Is Dimmable. Screw. A19. Bulb Life: 0.9 years based on 3 hrs/day.