The solar street light is powered by crystalline silicon solar cells, stored by lithium-ion batteries, and powered by ultra-bright LED lamps, which are controlled by intelligent charge and discharge controllers to replace conventional public electric lighting. No cable laying, no AC power supply, no electricity charge; DC power supply, photosensitive control; good stability, long life, high luminous efficiency, the utility model has the advantages of simple installation and maintenance, high safety performance, energy saving, environmental protection, economy and practicality, etc. . Can be widely used in the city main, secondary trunk road, residential areas, factories, tourist attractions, parking lots and other places.