Features 【Automatic Light】Solar light control switch, automatic light control switch in dark, simple operation, fine workmanship. 【Automatic Light Control Function】LED switch control board with photoresistor. It will automatically turn on at dark. It will automatically turn off at dawn. There is no delay. 【Low Voltage Control Board】DC 3V-30V Low voltage pure light controlled switch control board, as long as it is within the required range, you can connect to any lighting products you want to control, include 3V/9V/12V/15V/24V. 【Application Scenarios】Solar light control board is suitable for solar lights, low voltage DC corridor lights, garage lights, street lights, gardens, etc. 【Lightweight and Portable】LED light sensitive switch controller is light in weight, small in size, easy to carry and store, convenient and quick to use, and stable in performance. Specification: Item Type: Solar Light Control Board Material: PCB Size: Approx. 25.7 x 18.1mm / 1.0 x 0.7in Input Voltage: DC 3V-30V (Do not use dry batteries) Output Voltage: DC 3V-30V (How many V input is connected to the output is how much V) Output Lamp W Number: Power supply voltage X4 is the maximum withstand W number. (For example, 12V power supply cannot exceed 48W lamp) current cannot exceed 4A Package List: 1 x Solar Light Control Board 1 x User Manual Package List 1 x Solar Light Control Board 1 x User Manual