This Philips 40 watt equivalent A19 LED bulb uses only 5.5 watts of energy, saving up to $41.55 over the life of the bulb (based on 3 hours/day, 11 cent/kWh, costs depend on rates and use)This Philips LED bulb turns on at full brightness with 450 lumens, and provides a light similar to daylightWith a life of 10+ years, this Philips LED bulb is perfect for closets, dining, living and bedrooms