Why are solar led street lights the first choice for road lighting?

Why are solar led street lights the first choice for road lighting? High-power LED lighting technology is becoming more and more mature. At present, the commercialized high-power white LED light source can achieve a luminous output of 80 to 120 lumens per lamp, and the efficiency is about 80lm/W. It is estimated that the overall performance will be improved in 2009. Once it is doubled, it reaches 200 lumens per lamp, and the luminous efficiency is expected to reach 160lm/W. In addition, the LED light source has the advantages of stable device performance, high efficiency, energy saving, long life, and good color rendering index. In addition, under the huge pressure of energy saving and environmental protection, foreign governments have adopted relevant policies to encourage and promote the application of LED lighting products. In December 2005, Japan promulgated a promotion tax law to improve and increase energy use, which clearly stipulates that companies or institutions that use LED lighting to replace incandescent lighting can obtain 130% excess depreciation of the investment amount, or a tax reduction of 7% of the investment amount; EU 2006 In July, the RoHs Act was implemented to limit the use of fluorescent tubes containing mercury; California lawmakers proposed to implement a ban on incandescent lamps by 2012; in February 2007, the Australian government announced that it would phase out incandescent lamps; Taiwan, my country, restricted incandescent lamps in 2012 The National Development and Reform Commission, the Ministry of Finance, the Ministry of Science and Technology and other departments are working hard to promote LED products to replace traditional light sources such as incandescent lamps and high-pressure sodium lamps, and have established a goal of achieving energy savings of 26 billion yuan by 2015. The promotion of technology and policies has made LED street lights the first choice to replace traditional street lights.