The Advantages of LED Lighting

Long life – LED lamps’ lifetimes can exceed 100,000 hours, as compared to 1,000 hours for tungsten bulbs

Robustness – no moving parts, no glass Size – typical package is only 5 mm in diameter Energy efficiency – up to 90% less energy used translates into smaller power supply required Non-toxicity – no mercury Versatility – available in a variety of colors Cool – less heat radiation than HID or incandescent Lighting is the single biggest user of electricity Incandescent Light Bulb – 1-4% efficient Fluorescent – 15-25% efficient LED Bulb  - 20-52% efficient (60-80% theoretical) * "DOE Solid State Lighting Status and Future" SPIE Annual Meeting 2004 **J. R. Brodrick, "DOE Solid State Lighting Status and Future" Report for Dept. of Energy Global Warming / Energy Savings Potential   If a 150 lm/Watt Solid State LED source were developed, then in the United States alone we would: Realize $115 Billion cumulative savings by 2025* Alleviate the need for 133 new power stations* Eliminate 258 million metric tons of carbon* Save 273 TWh/year in energy** * "The Promise of Solid State Lighting" OIDA Report , 2001 **A. D. Little, "Energy Savings Potential of SSL" Report for Dept. of Energy