Solar lights are electric lights that are converted into electricity by solar panels. During the day, even on cloudy days, this solar generator (solar panel) can collect and store solar energy. As a safe and environmentally friendly new electric light, solar light has been paid more and more attention.
System structure of solar light
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 heads part uses 1W white LED and 1W yellow LED integrated on the printed circuit board and arranged as a dot matrix with a certain spacing as a plane light source. light source. The control box body is made of stainless steel, which is beautiful and durable; the maintenance-free lead-acid battery and the special charge controller for solar street lights successfully developed with the patented technology of slow pulse fast charge and discharge are placed in the control box. 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 reducing system maintenance costs; the charge and discharge controller is designed with full functions (with light control, Time control, overcharge protection, over-discharge 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 is made on the principle of the 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. After the battery has been discharged for 8.5 hours, the charge and discharge control will act, and the battery will be discharged. The main function of the charge and discharge controller is to protect the battery.