Feature:1. This product is an undervoltage switch module, mainly used to turn off the load power when the voltage drops below the set value.2. When the battery voltage increases to the set value, the module will automatically turn on the load again, and the operation is simple.3. With LED indicator design, you can clearly check whether the load is cut off or turned on at any time.4. The voltage error is small, you can adjust the off and on voltage values by simply adjusting the potentiometer.5. With overdischarge and overvoltage protection, undervoltage automatic charging and other functions to help extend battery life.Specification:Item Type: Battery Protector BoardMaterial: ResinInput Voltage: DC12VApplicable Battery: Dedicated for 12V batteryVoltage Error: 0.1VProduct Load: 10ASize: Approx. 30 x 60mm / 1.2 x 2.4in.Package List:1 x Battery Protector Board