1. Using high-quality materials, the quality is guaranteed2. Photovoltaic solar charge and discharge automatic control switch, suitable for a variety of battery voltages3. Simple and portable to use4. Charge during the day, automatically turn on the light when it is dark, and automatically turn off the light when it is bright5. The low-power controller is suitable for solar garden lights, lawn lights, colorful string lights, small street lights, etc.Charging in the daytime, automatically turning on the lights at night, and automatically turning off the lights at dawn, the output voltage is the output voltage when the battery has no voltage. The circuit controls the output by detecting the change of the voltage generated by the solar panel, without the need for photosensitive elements; it is suitable for a variety of batteries.Wiring method:1.B+B- connected lithium battery2. S+ S- connect to solar panel3. L+L- outputWiring sequence:1: Connect the lithium battery, the battery must have the corresponding protection board2: Connect to the LED, the lithium battery has power and the LED lights up3: Connect to the solar panel. At this time, the solar panel is illuminated with light, and the LED is off, and the LED is on without light.The switch can be installed if it needs to be turned off at night or the switch interface SW has been reserved for transportation and storage.Colour:greenMaterial:plasticPackage Contents:10 x Solar control switch circuit boardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.