Our LED light bulbs offer outstanding energy efficiency, long-lasting performance and just-right brightness, all in one package. They illuminate your home with cool, bluish white daylight. Unlike CFL bulbs, our LED bulbs feature instant full brightness and are free of mercury. It’s great for frequently used fixtures – our LED’s long life and low energy use will help you save money on energy.Rated to last 9.1 years with an annual operation cost of 1.57 dollars based on 3 hr per day use at 11 cents per KwH