System principle

The working principle of the system is simple. The solar panel made by the photovoltaic effect principle receives solar radiation energy during the day, converts the energy into electrical output, and stores it in the battery through the charge and discharge controller. At night, when the illuminance gradually drops to 10lux Around, the open circuit voltage of the solar panel is about 4.5V. After the charge and discharge controller detects this voltage value, it discharges the lamp cap. After the battery is discharged for 8 hours, the charge and discharge controller starts and the battery discharge ends. The main function of the charge and discharge controller is to protect the battery.