The US Department of Energy continues to test the Philips Lighting LED retrofit lamp that won the L Prize with no failures reported over more than 20,000 hours of operation.
The US Department of Energy(DOE)has released another update of its testing of the Philips Lighting LED 60W-equivalent retrofit lamp that won the L Prize.The tests have reached what the agency considers the equivalent of 18 years of household use with no failures.The DOE also released a summary of rebates available for the solid-state lighting(SSL)product that range as high as$20 per lamp.
Philips Lighting's L Prize winner
After 20,000 hours of operation,the full lot of 200 sample lamps are all still operating.Moreover,the DOE said that average lumen maintenance remains above 100%of their initial output.The tests are being conducted in an environment where the ambient temperature is maintained at 45°C.
Based on typical household lamp use that averages three hours per day,the DOE says that the 20,000 hours is equivalent to 18 years of residential usage.Such a lifetime makes the lamp price more palatable with Home Depot currently selling the product for$30.
L Prize rebates
Of course the price is even more attractive for consumers that can snare one of the rebates being offered by certain utilities around the US.Efficiency Vermont is offering a$20 rebate through Home Depot stores in the state.The Southern Minnesota Municipal Power Agency is offering businesses a$20 rebate and consumers a$15 rebate.
Puget Sound Energy in Washington State is offering consumers a$10 rebate plus a$5 discount coupon usable at Home Depot stores,as well as a$20 rebate for business customers.The L Prize website includes a complete list with other offers in Illinois,Colorado,and Massachusetts.
