Solar energy is a green and environmentally friendly new energy product. It is now widely used in various fields. Its products developed by solar technology do not account for a few, such as solar water heaters, solar computers, solar street lights, etc. Solar street light. With the development of the times, it has been widely used in public places such as residential communities, villa yard, and parks. It not only improves the safety of people's travel at night, prolongs the time of outdoor activities, and embellish the courtyard scenery at night. It will not pollute the surrounding environment and has no harm to the living environment of human beings. Therefore, it is applied and promoted.