Brightness Quality: 400 Lumens. Energy Info: $3.49 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 29 Watts. Package Info: 4-Pack 4 Bulb Info: Halogen Both Is Dimmable Bulb Life: 0.9 Hours Based on 3 hrs/day. Bulb Appearance: 2700 Kelvins. Misc: A19. 40W uses only 29W. Brightness: 400 lumens. Estimated Energy Cost: $3.49 per year. 0.9 year life. 28% savings in energy use (29W bulb uses less energy than a 40W incandescent bulb). Dimmable. Indoor/Outdoor. Ready for life. These lamps comply with federal energy efficiency labeling requirements. www.besimplydone.com. Quality Guarantee: If you are not 100% satisfied, return our product for a full refund. Made in USA.