Analysis of the development potential of LED lighting technology in my country

As the latest and most potential green light source, LED is more and more popular. From the early days, LED was only used as an ordinary indicator light in home appliances such as TV sets and tape recorders. Today, it is widely used as outdoor displays, traffic signals, high pole lights, street light poles and landscape lighting. It has experienced almost 20-30 years of high-end street lighting and large-size LCD backlight sources, and its rapid development is obvious to all. In particular, the expectation that LED will enter the general lighting market in 5-10 years has affected countless excited hearts. There are many people with lofty ideals who want to contribute to this aspect, or participate in the torrent of this history. It is precisely because of a large amount of human and material investment that LED lighting technology and the market have developed extremely rapidly in recent years. Comparison of LED light source and traditional light source As a lighting product, the biggest weakness of LED is that the luminous flux and cost are almost linear. This makes the cost of LED light sources in the high luminous flux range very high and cost-effective. Therefore, in the early stage of market promotion, the application market of low luminous flux should be considered first, such as the application requirements of 200-800lm. The range of this luminous flux corresponds to about 3-15W of electrical power at the current level of LED luminous efficiency. LED lighting technology and product status The luminous efficacy research and development index of high-power LEDs has reached 161lm/W, and most of the productive LED luminous efficacy is in the range of 80-120lm. Lighting products include not only LEDs, but also drivers and lamps. At present, the price of LED lighting is very high. Taking the three-watt LED cup lamp as an example, its luminous flux is 120-200lm, and the price is nearly 80-100 yuan. And the general halogen cup lamp, the luminous flux of 20W is about 320lm, and the price is about 2-10 yuan.