The structure of the solar lamp
The solar light is composed of solar cell components, some LED lamps, a control box (which has a charger, a controller, and a battery in the control box) and a light pole. The luminous efficiency of the solar panel reaches 127Wp/m2, and the efficiency is high, which is very beneficial to the wind resistance design of the system; the lamp head part is integrated with 1W white LED and 1W yellow LED on the printed circuit board and arranged as a dot matrix with a certain spacing as a plane light source. light source.
The system uses valve-regulated sealed lead-acid batteries, which are also called "maintenance-free batteries" because of their little maintenance, which is beneficial to reduce system maintenance costs; the charge and discharge controller is designed with full functions (with light control, Time control, overcharge protection, overdischarge protection and reverse connection protection, etc.) and cost control to achieve high cost performance.
The working principle of the solar lamp is simple. The solar cell made of the principle of photovoltaic effect. During the day, the solar panel receives the solar radiation energy and converts it into electrical energy for output. It is stored in the battery through the charge and discharge controller. At night, when the illumination is gradually reduced to about 101ux, The open-circuit voltage of the solar panel is about 4.5V. The charge-discharge controller detects this voltage and acts, and the battery discharges the lamp head.