LED vs. HPS in Street Lighting Applications

In February 2011, the U.S. Department of Energy (DOE) tested nine (9) different LED products as replacements for high-pressure sodium (HPS) luminaires in various street-lighting applications in Kansas City, MO.  The results of this study, as well as a summary of the key findings are available on the website of the Illuminating Engineering Society (IES), of which AMPRO is a proud member.