2011-04-26

City Lighting’s LEDs Supported Washington University for Energy Saving

Washington University in St. Louis has made a LED retrofit with the help of City Lighting Products. The university is projected to save its Danforth Campus upwards of 75 percent in lighting energy costs and provide a substantial savings in labor and maintenance costs compared to their old exterior lighting. Washington University aims to replace 400 existing 175-watt metal halide and high-pressure sodium vapor fixtures with 55-watt LED retrofit kits. Ed Barry, Director of Utility Operations for Washington University introduced that, "After City Lighting ...
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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