At the end of August 2014 the EU’s the Rapid Alert System for Non-food Dangerous Products (RAPEX) issued warnings for three LED products from China including an LED power supply.
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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