5 watts = 40 watts (Provides nearly the same light output as a 40-watt incandescent bulb [450 lumens vs. 490 lumens]). Brightness: 450 lumens. Estimated Energy Cost: $0.60 per year. Quality guaranteed or your money back. UL listed. Made in China. Brightness Quality: 450 lumens. Energy Info: $0.60 Based on 3hrs/day, 11 c/kWh. Cost depends on rates and use. 5 watts. Package Info: 4-Pack. Bulb Info: LED. Screw. Bulb Life: 9.1 years Based on 3 hrs/day. Bulb Appearance: 2700 k.