Brightness: 420 lumens Estimated yearly energy cost: $0.54 (based on 3-hour/day, $0.11/kwh, costs depend on rates and use) Life: 13.7-Years (based on 3-hour/day) Light appearance: 2700K (Soft White) Energy used: 4.5-Watt (equivalent to a 40W standard incandescent light bulb)