Constraints on LED street lights
According to the world financial crisis response, the central NDRC took 4 trillion together with the local financial support is expected to have 10 trillion funds to support enterprises, and improve the national transportation infrastructure. The Ministry of science and technology has launched the "Ten City, ten thousand" LED street lighting semiconductor lighting application project in the whole country. Under this strong east wind, the semiconductor lighting industry, which has been supported by the government, will be a great opportunity for development. Many enterprises are optimistic about the development of this sunrise industry, especially the obvious energy-saving advantages of semiconductor outdoor lighting. In the past 2 years, many enterprises have been put into production. They have made their products in the market by imitating, imitating and following the conventional lighting street lamps. Most products have varying degrees of problems.
Maintenance problem. High pressure sodium lamp is good for maintenance. As long as the lamp is scrubbed, it is not necessary to replace it. The light source is changed once every 4 years, which is very convenient. And LED street lamps, involving LED tubes, modules (including lenses, etc.), power devices, etc., components and components of the possibility of greater damage, maintenance difficulties, it is possible to replace the whole, higher costs. High price: LED street price is 2-5 times that of high pressure sodium lamp, even if the power consumption of LED lamp is only 1/2 HPS, but because the price is much higher than that of high pressure sodium lamp, high pressure sodium lamp is replaced by LED cost recovery cycle will still be very long;
The development of the domestic LED light source relative to foreign technology started late, from the international leading industry there is a certain distance, although the domestic LED light source theory of life can reach 100 thousand hours, but because of the heat problem cannot be solved completely and effectively, so that the actual life of large discount; unstable power supply system: LED driver power supply is the industry consensus in fact it is not stable, on the LED lighting industry back, because the driving power supply is an important part of the LED street lamp, which will lead to failure of the whole lamp fault. Due to poor reliability of power installed street lights are likely in a short period of time will be bad, the LED street lamp this outdoor height device, difficult installation, maintenance more difficult, for the lamp manufacturers, power supply instability makes the rising cost of maintenance.
