Taiwan: LED light efficiency threshold falls at 170lm/W

After the market shouted that the second half of 2013 is expected to enter the era of LED lighting, the academic community also responded. Xiao Hongqing, a professor at the University of Science and Technology of Taiwan and executive director of the Lighting Society, said that the light performance of products will be the focus of accelerated development of LED lighting, and the threshold of light efficiency is reasonable. It fell on the LED chip up to 170lm/W.

In addition to the world's largest manufacturers Cree, Nichia, Philips, the highest luminous efficiency of 240 ~ 260 lm / W, and Cree also claimed that 180lm / W products can be actually mass production from the beginning of this year, it is estimated that the overall market will reach this August At the level, the LED industry will be able to break away from over-reliance on the backlight panel industry, enter stable lighting demand, and enter the era of true LED lighting.

Xiao Hongqing pointed out that many market products still compare each other with luminous flux. In fact, light efficiency is the key to accelerating the development of LED lighting. When the luminous efficacy of LED chips reaches 170lm/W, the luminous efficacy of LED lighting light engine module system is about 125 lm. /W, has exceeded the luminous efficacy of the T5 fluorescent lamp, so if the LED lighting is to be successfully developed, the LED chip has a reasonable light threshold of 170lm/W.

In response to market conditions, Xiao Hongqing said that the mass production level of most products in the market is currently 100lm/W, and the current high-efficiency Cree, Nichia, and Philips have the highest luminous efficiency of 240~260 lm/W. The light efficiency has also reached 230 lm/W, and the crystal power has the same level. However, it is estimated that the 170 lm/W product will be mass production level for about half a year. It is expected that the August will be out of over-reliance on the backlight panel. Industry, enter the stable lighting demand, enter the era of true LED lighting.