LED lighting breakthrough price barriers need to start from the technology

According to a comprehensive energy reduction program of work issued by the State Council, the national development and Reform Commission through financial subsidies to promote LED lighting products 150 million. According to the relevant departments energy-saving lamp price is too expensive has been unable to solve the problem. Indoor lighting to LED lighting after the popularity of thousands of households, the real indoor lighting market than outdoor lighting market larger, LED is used in indoor lighting especially the atmosphere, have in any other light source but at There is nothing comparable to this advantage, the domestic market is concerned, the price is too high, most people still can not afford. According to the analysis of LED, leading to LED expensive mainly has the following several reasons:

1 domestic enterprises, non core technology

Most of the upstream LED industry's core patent master in foreign hands, we do not grasp the core technology, although we LED applications in the global manufacturing capacity accounted for 50%, accounted for 50%, but the profit is indeed the lowest ring.

LED chip technology, with the growth of a larger size wafer fabrication process, will continue to reduce costs, reduce the rate of 20% annually in recent years, LED chip price factor, will enhance the optical efficiency is also included in the lower price, the same price to buy better products. The cost of LED lighting is mainly in the LED chip, as long as the chip prices down, LED lumen unit price can be reduced to the equivalent of the current energy-saving lamps, indoor lighting naturally everywhere. LED chips are also large price space.

2, the application of LED products difficult heat

Structure design accounts for about 20% in the lamp, has been Chinese industrious people will think price is very low, 20% of the cost is reasonable, the biggest problem is how to be more creative, more reasonable design.

Heat cost should be maintained at 5%, the actual thermal design is very simple, following two directions: one is the LED chip and the external heat sink path shorter is better, the shorter the thermal design your better; two, the heat resistance is to have enough heat to the path must also have enough the "heat Road". This part is mainly in the cost structure, the cost is not much for cooling.

3, LED weak power application

Power is the weakest link of LED lighting, LED lighting development lags behind, the quality to be improved. Now account for about 20% of the cost of lighting design, some high. With the development of power technology in 5-10% is probably the most reasonable.

LED is actually relatively high cost, at present the other light source, as of 1990s before the invention of the blue LED, which leads to the realization of the white light LED LED industry, in fact, the cost is not high. In particular, LED environmental protection, energy saving, mercury free, and the price of LED lamps in each quarter are slipping down, I believe that in a relatively short period of time to reach the level of acceptable.

Domestically, is expected in the next 3 to 5 years, with the development of the upstream chip, indoor lighting products accounted for 40% of the proportion of semiconductor lighting applications is very optimistic.