Solar street lights are efficient and energy-saving lighting devices that utilize solar panels to convert light energy into electrical energy, and store this energy through energy storage devices (such as lithium batteries) to automatically illuminate at night or in low-light conditions. Their core principle is to generate electricity through the photovoltaic effect, coupled with intelligent controllers to achieve multi-mode control such as light sensing, time control, or human body sensing. They do not require an external power grid, thus offering advantages such as zero electricity bills, no pollution, and easy deployment