Recently, the two cities of Pennsylvania, Ambler and Sunbury, have announced their participation in the Cree LED City Program, an international project to promote and deploy energy-efficient LED lighting. The streetlights in both cities have been replaced with LED streetlights, which are manufactured by Spring City EL ectrical Manufacturing Company and use Cree's XLamp MC-E and XP-E LEDs.
A decorative urban LED streetlight has been installed along the track in downtown Ambler, 15 miles north of Philadelphia. Each street lamp has a maximum power of 74W and emits a light source equivalent to a 150W high pressure sodium lamp. Spring City expects 60% energy savings per LED streetlight, and can save $15 in annual maintenance costs or $100 per year in installation costs.
Recently, the city of Sunbury on the banks of the Susquehanna River has completed the installation of 10 Washington-style LED street lights, with an expected energy savings of 43% compared to conventional metal halide lamps. Sunbury City officials predict that LED luminaires will save $29 per luminaire per year and, overall, $290 per year. (http://?i=1281015820767)
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