2009-04-24

All Taiwan’s Traffic Lights Expected to Be Replaced with LEDs by 2011

Taiwan has plans to replace all of the traffic lights on the island, with the total number to be approximately 700,000, with energy-saving LED lights by 2011, said the Ministry of Economic Affairs (MOEA) on Thursday, as a part of the government's ambitious green energy industries development project to be implemented by 2015.
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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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