In recent years, solar street lights have been widely promoted, and solar led street lights have been installed in many areas. However, some problems will be found in some places after two or three years of operation. The street lights will be completely extinguished or need to be replaced. Only the parts can be re-lit, so if this problem cannot be solved well, the advantages of solar street lights will be less obvious. So how can we longpela taim long sevis laip bilong ol sola strit lait? Tede, edita blong Changyuan Lighting bae i introdiusum sam tips blong extendem seves laef blong ol sola strit laet.