Chang Hui: Solar street lights, one-time investment, lifetime benefits?

The advent of solar street lights as a new energy source has received unprecedented attention, judging from the slogans of various media. The image of solar street lights is almost perfect without any flaws. For example, solar street lights are pollution-free new energy sources, relying on solar power to generate electricity, do not need to use mains electricity, do not need to bury pipelines, and save a lot of costs. It is understandable that solar street light is a very good product, and it is also the trend of future street light development. So what are the advantages and disadvantages of solar street lights compared with ordinary street lights? First, the price of solar street lights is high. Compared with ordinary street lights, the procurement cost of solar street lights is much higher, which is also a factor in the slow development of solar street lights. Second, the lighting problem of solar street lights in rainy days, general manufacturers can only guarantee lighting in rainy days for about 7 days, and the longer the requirements, the higher the cost. Third, solar street lights must be installed in open areas, such as high-rise buildings and shaded places, which means that solar street lights are very strict on site installation. The city circuit lights do not have this requirement. At present, solar street lights are not as perfect as the merchants say. Only by looking at solar street lights objectively and rationally can solar street lights develop and grow healthily. But with the advancement of technology, I believe that one day solar street lights will be perfect.