Interpretation: a series of questions to be solved LED

In recent 20 years, people have been looking for green lighting. The development of light emitting diode (LED), is expected to develop into the fourth generation of light sources, that is, semiconductor lighting. But its growth and development, but also bring a series of questions to be solved:

Answer one: the current global lighting for the daily use of electricity for 400 million degrees, if all replaced by LED, only need to be 120 million degrees, will save electricity consumption of 70% (key words: energy saving).

Energy saving is very important for china. This year, "power shortage" across the most southern provinces. China Power Enterprise Federation said that this is one of the largest power shortage since 2004 China faced, the scope and depth is hitherto unknown, a conservative estimate of the supply gap reached 30 million kilowatts, equivalent to two Anhui or three of Chongqing's total power generation. At present, due to the nuclear crisis, nuclear power supply reduced due to "power shortage" in Japan, the largest electricity shortfall may be expected only 10 million ~1500 million kilowatts. Therefore, Japan's Sankei Shimbun commented that China faces a shortage of electricity several times in Japan, a historic electricity difficulties are testing China's nerves".

Another point of view, last year China lighting power consumption accounts for the national total electricity consumption 4 trillion and 200 billion kwh in 12%, which is up to 504 billion kilowatts of electricity for lighting, if all replaced LED, to save 70% lighting electricity consumption calculation, then save 350 billion kwh of electricity, is 10 times the national electricity shortfall this year. The popularity of LED, China "power shortage" will become history.

Answer two: the global market on the existing incandescent lamp, energy-saving fluorescent lamp only 3 billion, LED lighting only 10 million, China LED lighting home market is almost a blank (key words: market) ().

Incandescent lamp and fluorescent lamp market accounted for 5:1; energy saving lamps and LED lighting market accounted for 300:1. This shows that the LED market potential is huge, on the other hand also shows that LED products are not mature. Jihua photoelectric operations manager Zhang Yajun said, "the current LED lighting is mainly concentrated in the professional field, such as government procurement, hotel, office, not really into people's homes, this is the real big cake. As the core technology is subject to foreign, LED cost is difficult to drop, coupled with consumer awareness of LED is not enough, LED lighting is difficult to enter the family. In addition, the Japanese LED product failure rate is only 1/3000000, while the domestic failure rate of 60%~80%, so the market is still in the final analysis of technical personnel. Crystal Electronics chairman Xiao Guowei said: "if we look at the LED device itself, it may be a single device, but when it is used in the lighting field, involves many interdisciplinary, cross industry field and knowledge structure, all the needs of professionals to join. Talent problem is a bottleneck in the development of domestic LED industry. "

Answer: three 60W incandescent lamp over last year has been in the European Union and the United States began to phase out. In China, many families have long been out of incandescent light, but it is replaced by energy-saving fluorescent lamps, rather than LED (key words: policy).

Why is it that the incandescent lamp has gradually withdrawn from the stage of history, instead of being an energy-saving fluorescent lamp instead of LED? This is related to the government's first implementation of energy-saving fluorescent lamp fiscal subsidy policy. October 2007, the Ministry of finance, the national development and Reform Commission jointly issued the "efficient lighting products to promote financial subsidies Interim Measures", from the beginning of 2009, the use of financial subsidies to promote efficient energy-saving lamps. Guangdong OPPLE lighting Limited by Share Ltd general manager Ma Xiuhui Zhongshan said, taking Shanxi as an example, OPPLE lighting products price is 8.5 yuan, up 50% countries, the government of Shanxi Province, 30% farmers, as long as pay 20%, less than two dollars, very popular. In Shaanxi, Ningxia, Shanxi and other provinces (autonomous regions) has sold only 5 million 500 thousand.

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