Solar street lamps work on a simple principle. Solar street lamp manufacturers use the principle of photovoltaic effect to receive solar thermal radiation during the day and convert it into electrical energy for output. Solar cells are stored in solar energy. After the charging and discharging controller,the illumination at night and solar energy gradually decreased to a certain degree. The open circuit voltage of the battery panel is about 4.5v. The charge and discharge controller detects this voltage and starts working. The battery discharged into the lamp. Typically, battery discharge times can be set by the arrival of manual,optical control,or smart sensors.Among them,the most important function of the solar charge and discharge controller is to protect the battery and control the lighting switch of the street lamp.
These Automatic Solar Street Lights can be installed in various traffic roads ,auxiliary roads, residential roads, courtyards, mining areas and places where lack of electricity.