What is the development status and future of LED street lamps
Whether LEDs can replace traditional lamps or not depends on whether the comprehensive performance of LEDs exceeds that of traditional light sources and whether they are cost-effective in the long term. On the whole, LED will probably bring a new revolution for artificial lighting, and become a new light source that comprehensively surpassing the existing light source. It has a very good development potential and market prospect. LED street lamps have been gradually accepted and tried from being rejected at the beginning, but there is still a long way to go before LED street lamps can replace traditional light sources.
First, LED street lamps are different from traditional street lamps
Different from the LED landscape lamps that have been fully deployed, high-power road lighting requires wide coverage, large light projection, high uniformity and heat dissipation requirements, which is the most difficult field for directional LED to tackle. Compared with traditional lamps, LED street lamps have different characteristics in four aspects.
(1) the structure of lamps and lanterns.
(2) Efficiency.
(3) Light color.
(4) Price.
II. Application of LED street lamps
(I) The LED lighting products industry has a low threshold, and the quality is intermixed. The bidding mode of materials with the lowest price makes it difficult for high-quality products without price advantages to be selected.
(two) LED products with new speed, and different manufacturers of products are incompatible, not interchangeable, later maintenance is difficult.
(3) The testing standard means are not mature, so far there is no authoritative standard testing means for LED products, which increases the difficulty for us to select high-quality facilities.
(4) Most of the products need to be replaced by the whole lamp, and the maintenance cost of a single lamp is about 10 times that of conventional lamps.
(5) In recent years, LED street lamps have been invited for bidding for many times, of which 11 have failed to pass the inspection of authoritative testing institutions. The main reason is that the parameters of the manufacturers' weight lamps cannot pass the inspection of authoritative testing institutions, which seriously affects the promotion and use of LED street lamps.
III. Prospects of LED street lamps
(1) Overall prospect: Although LED has been limited by color and luminous efficiency for many years, GAP and GaASP LED has been favored by users due to its long life, high reliability, small working current, compatibility with TTL and CMOS data circuits and many other advantages.
(II) Breakthrough points in the development process: First of all, it needs the support of industry policies to formulate unified annotations and norms to solve the problem of client interchangeability; Secondly, we should solve the problem of improving light efficiency. The third is to control the cost, only to control the cost can reflect the advantages of cost-effective; The fourth is to ensure the working conditions of LED and the recognition of power supply technology.