Audiences are pretty impressed by the visual feast created by thousands of LEDs in The London Olympic Games opening ceremony. And we can see that LED related products have played a key role in the recent important events. Currently, with the global environmental awareness is arising, the scale of LED application will enlarge, bring a good future for LED drive power. At present, with the development of LED technology, the products are becoming more and more diversified. LEDs are not only used in  stage engineering and display screen, but also in the outdoor r...