Hot sale 18V 40W Solar Street Light

The use of solar day solar panels photovoltaic photovoltaic effect principle receiving solar radiation energy into electrical energy output and, after charging and discharging controller is stored in the accumulator. When night illumination gradually reduced to about 101ux, the solar battery board open circuit voltage of about 4.5V, the charge and discharge controller to detect the voltage value of the battery after the action. Discharge lamp. Battery discharge 8 hours later, charge and discharge controller action, battery discharge end. The main function of charge and discharge controller is to protect battery. Specification Model KY-12-40W LED Power20 40W Solar Power 18V70W Lithium Battery 12.6V40AH Luminous Flux…

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