A19 bulbs. Non-dimmable. 40 W replacement. Uses only 6 W. Life: 10 years (based on 3 hrs/day). $164 approximate energy saving per pack (Energy savings are estimated based on the performance specifications for these four LEDs for their rated life of 11,000 hours at 11 cent per kWh compared to using four 40 watt incandescent lamps for 11,000 hours. Savings will depend on actual use and electricity rates). Brightness: 450 lumens. Estimated Energy Cost: $0.72 per year. Soft White: 2700 K. Multi-use. Suitable for use in enclosed fixtures. Indoor/Outdoor (When used outdoors, do not expose directly to water). UL listed. www.feit.com. Made in China.