Conserve energy with this Energy Smart® light bulb. Emits soft white light. Efficient (saves up to 75% of electric costs over incandescent bulbs, considered the "GREEN Movement's" bulb of choice). Efficient (Saves up tp 75% of electric costs over Incandescent bulbs, considered the "GREEN Movement's" bulb of choice). Brightness: 620 lm; Voltage: 120.0 V; Power: 15.0 W; Energy Saver: Yes.