Leicestershire County Council in UK has proposed to invest more than GRB 25 million (US $39.2 million) to convert the city’s outdated sodium lights to LED streetlights to cut energy bills, according to a BBC report.
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
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