This A19 Lamp estimated Energy Cost is $0.78 per year and can saving energy $92 in life time. The life time is long 25000H. This A19 Lamp is Dimmable as well as Omni-Directional. Brightness: 450 lumens Estimated yearly energy cost: $0.78 (based on 3 hours/day, 11 cent/kWh, costs depend on rates and use) Life: 22.8 years (based on 3 hours/day), long lifetime Light appearance: 2700K (soft white) Energy used: 6.5-Watt (equivalent to a 40-Watt standard incandescent light bulb) Lumens per watt: 69.23 For use with light dimmers, compatible with most dimmer switches, it is dimmable as well as Omni-directional, indoor lighting applications