Difficulties of LED lighting sources used in residential lighting applications

Currently, LED lighting applications have been researched, developed and produced by countless LED companies. LED technology has occupied a very important position in the project lighting market and the outdoor lighting market. But for residential lighting market, it is only to say that LED technology is still an emerging market full of potentials and opportunities. How to bring LED lighting sources into ordinary families?

 

Difficulties of LED lighting sources used in residential lighting applications

 

The distribution of domestic LED lighting industry is relatively concentrated: the Pearl River Delta, the Yangtze River Delta, the southeast region and Beijing area. Each area has basically formed a relatively complete industrial chain. Dalian, Shenzhen, Xiamen, Nanchang have large-scale production bases for LED.

 

Most people in this country are still lacking of necessary knowledge about LED lighting technology. Furthermore, prices of LED products are much higher than that of other traditional lamps. As a result, it is difficult for LED lamps have a deep penetration in residential lighting market. On 20th of March this year, the Ministry of Finance, the National Development of Reform Commission and the Ministry of Science and Technology launched a public tender named “2012 financial subsidies and projects for promotion of LED semiconductor lighting products”. Nearly 300 bidders from 110 LED companies all around the country participated in the tender. Many LED lamps have been listed as tender products, like LED down lights, reflective self-ballasted LED lights are classified as indoor lighting applications, and LED street lights, LED tunnel lights used for outdoor purposes. The National Development and Reform Commission declared that in 2012 the Chinese government will spend 40 billion yuan for LED lights procurement and provide 30% financial subsidy for users.

 

At present, LED lighting sources are still in the stage of immature, frequently encountering bottlenecks both in technologies and in equipment producing. In the field of substrate materials and wafer equipments, domestic LED lighting industry had obvious bottlenecks. The independent innovation and patents of our LED industry are mainly concentrated on the packaging area. Those core technologies, like White-ray LEDs, heat dissipation of high-powered LED lamps, durable and efficient phosphor technologies, patents in these fields are mostly under the control of giant manufacturers from Europe, America and Japan. Most crucial parameters of domestic LED products are still lagged far behind the international level, like brightness, heat dissipation, lighting efficiency, evenness of light distribution, antistatic abilities, anti-leakage abilities, etc.