Energy-saving effect has increasingly highlighted the development status and trend analysis of LED street lamps

泱泱 Hua Xia, Hong Hong Zhonghua, five thousand years of splendid culture, whether it is the replacement of the dynasty, or the change of personnel, all the time and for all, in order to seek a generous and benevolent quality. Relevant data show that China's LED street lamp production capacity will continue to increase in the next few years, but the growth rate will decline compared with previous years, and more production capacity will be developed in the future export foreign markets. Climate organization CEO MarkKenber said that with the development of cities around the world, the number of street lights is expected to reach 350 million in 2025. Technical development of LED street lamps The current LED street lamps, the appearance of the products, the arrangement and quantity of the LEDs, and the dimensions and internal design of the rectifier circuit are various. For example, the number of single-tube power varies from 1-5W; the light distribution varies from bat shape to rectangular shape to butterfly wing type; the optical processing method has self-contained lens to avoid secondary optical processing and secondary optical processing. The driver case has a dedicated driver chip IC and electroless capacitor; the package has multi-chip package and single-chip package; the technical circuit has mode, group high power, chip integrated high power, dot matrix high power and so on. The power supply assembly also has its own integrated and external power supply, and the heat dissipation technology also has its own advantages. This brings great inconvenience to the operation and maintenance work after the universal use, and does not meet the design principle of standardization and generalization of municipal public facilities. Optical design and heat dissipation are the main technical problems faced by LED street lamps. Although the development of high-power LED street lamps is very fast, there are still different levels of low lumens, low secondary light treatment, low system efficacy, fast light decay, short life, and color temperature deviation. A series of problems, such as different light colors and multiple faults in the drive. The main technical issues such as secondary optical design, thermal design and power regulator system design are the key to improving luminous efficiency and extending life. At present, the radiation forms of LEDs include Lambertian, side-projection, batwing, rectangular, butterfly wing and concentrating types. Through the secondary optical design, the illumination range and luminosity curve of the LED meet the requirements of road lighting. China's LED road lighting market mainly relies on government model engineering procurement, and its policy dependence is very high. In addition to the impact of LED street lamp performance and installation cost on its marketization, a sound market environment and mature business development model have become the key to whether the market can maintain healthy development. With the continuous maturity of technology, the energy-saving effect of LED street lamps has become increasingly prominent. In particular, the intelligent control characteristics of LEDs not only strengthen the advantages of LED street light products, but also greatly enhance the space for energy saving of road lighting systems. Therefore, in the context of current energy conservation and emission reduction, local governments have widely promoted LED street lighting products. Benefiting from the government's key project procurement, LED streetlight construction continues to promote large-scale and other favorable factors, the LED street lighting series index has continued to rise in the near future, greatly stimulating the LED street lighting market.

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