Saves 59 dollars on energy costs per bulb vs. 40-Watt A15 incandescent over the bulb's life Dimmable and works with most dimmer switches Warm, soft white high definition light with 2700 Kelvin color temperature case of 12 LED bulbs 40 Watt replacement using only 4 Watts (300 lumens) Rated to last 13 years based on 3 hours per day use General purpose bulbs for ceiling lights, ceiling fans and pendant lights with candelabra bases A15 shape and size with clear finish Candelabra base (E12)