Mercury Emissions by Light Source (Evaluated over a five-year life) Since coal power in the United States accounts for approximately 50% of all power production, by using the electricity generated from coal, there is an emission of mercury as well. *By using the electricity that is generated from coal-burning power plants. (Information is partially provided by USEPA, June 2002)

CO2 Emission Comparison (Based on the national average 1.34lbs/k Wh) Most of our electrical power supplies come from burning fossil fuels, especially coal, a huge CO2 culprit. By using such electricity, there is an emission of CO2. (Information is partially provided by National Geographic Society-Green Guide)

Besides the long product life and the reduced maintenance cost, LED is energy efficient, it delivers more lumens per watt over other light sources. Also, there is no mercury contained in LEDs. By using less energy, LEDs not only save money, but also limit negative impact on the environment. All in all, LED is a cost effective, reliable and clean light source.