It’s predicted by NPD Display Search that the compound annual growth rate (CAGR) of high-power LED shipments shall reach up to 13% from 2014 to 2017. This is accomplished through products such as street lighting, direct type backlight, spotlight and other high luminance application equipment. Meanwhile, high-power LED demand will increase to 27 billion in 2017 compared to 18.5 billion in 2014. By 2014, high-power LRF will occupy 28% of total LED shipments in street lighting, followed by TV backlight and spotlight.
Analysts expressed that, “Though high-power LED price is higher than small & middle power LED, in the street light cost structure, the LED light source only occupies a small part of street light total cost. To achieve high reliability and performance, many manufactures adopt reliable high-power LED to promote LED shipments. Furthermore, with energy costs increasing, high luminescence lighting requirements will enjoy sustained growth.
To improve thermal conductivity, high-power LED adopts ceramic substrate to replace original PPA materials, and with glass instead of silicone packaging to avoid the influence of humidity on the LED. Of high importance here is resistance to heat, since that can affect product reliability.