Solar LED street light mainly consists of LED lamp, solar panel, battery, controller and pole.
During daytime, the solar panel transforms solar power into electricity. The intelligent controller then stores the electricity into the battery. During night time, the voltage of solar panel gradually disappears. The intelligent controller then recognizes it has been night time, and then starts to release electricity power stored in the battery and provide power to the LED lamp, so that the LED lamp illuminates.
Advanced charge-and-discharge and illumination controlling circuit has been applied in the proposed solar LED street light. It does not need manual control of switch, and DC power supply ensures security and reliability. LED lamp contributes to high illumination efficiency and luminance uniformity. Luminous beam could be adjusted based on need, thus the light is energy saving. Besides, the solar LED street light could produce the power it uses, then it is an independent system itself. It does not require cables and wires, can be installed easily and no bill charge will be incurred. All in all, the solar LED street light is the best choice for street illuminance.