Solar anti-theft warning lights, Solar energy Can be absorbed and stored in high efficiency solar cells Built-in high capacity AN Ni-Mh battery, with no memory effect and long service life High quality, Imported high Brightness LED Chips If there is no sunlight for a long time, you can also use the Micro USB interface to charge No wires needed, just stick to the roof of the vehicle with the corresponding glue It can be charged by solar or you put switch on "on" or "off"