According to the State Council issued a comprehensive energy reduction program of work, Development and Reform Commission to promote financial subsidies by 150 million LED lighting products. According to an energy-saving lamps are too expensive has been unable to solve the problem. Indoor lighting involves thousands of families, after the popularity of indoor lighting LED lighting market really bigger than the outdoor lighting market, LED interior lighting in particular for use in rendering the atmosphere, have in the past any other sources are unparalleled advantages, but it in terms of the domestic market, the price is too high, the majority of people still can not afford. The LED analysis, resulting in expensive LED has the following main reasons:
1, the domestic enterprises have no core technology
LED industry upstream of most of the core patent lies in the hands of foreigners, we do not grasp the core technology, although we LED application products manufacturing capacity in the world accounting for 50%, the share accounted for 50%, but the lowest part of the profits does .
LED chip with the process, the number increases for larger wafer production process, will continue to reduce costs, lower rate of 20% annually in recent years, LED chip price factor, the upgrade to light efficiency is also reduced in price included , the same price to buy a better product. The cost of LED lighting, mainly in LED chip, as long as chip prices down, LED lumens Unit can be reduced to a considerable stage with energy-saving lamps, interior lighting naturally everywhere. LED chip is still a great room for price cuts.
2, LED application products heat difficult
Structural design in the luminaire about 20%, has been hard-working Chinese people will be priced very low, 20 percent said it was a reasonable cost, the biggest problem is how to be more innovative, design is more reasonable.
Cooling costs should be maintained at 5%, the actual thermal design is very simple, always has two directions: first, LED chip and the external radiator member path as short as possible, the shorter the better your thermal design; Second, heat resistance , is to have enough heat spread path must also have sufficient 'cooling path. "This is the main part of the cost structure for cooling does not cost much.
3, LED application power weak
Power LED lamps are the weakest link, is seriously lagging behind the development of LED lighting, the quality needs to be improved. Now about 20% of design lighting costs, and some high. With the technology development of power in about 5-10% of the most reasonable.
LED high cost, in fact, relative to the current source for the other, as in the 1990s before the invention of the blue LED, the white LED can be achieved resulting in the LED industry, in fact, now the cost is not high. Especially LED environmental protection, energy saving, no mercury, and LED lamps every quarter prices are sliding down, I believe we can reach an acceptable level of people in a short period of time.
Domestically, the next 3-5 years, with the development of the upstream chip semiconductor lighting indoor lighting products accounted for 40% of the proportion of applications are very optimistic.