Features 1、This product is an under‑voltage 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 over‑discharge and over‑voltage protection, under‑voltage automatic charging and other functions to help extend battery life. Specification Item Type: Battery Protector Board Material: Resin Input Voltage: DC12V Applicable Battery: Dedicated for 12V battery Voltage Error: ±0.1V Product Load: 10A Size: Approx. 30 x 60mm / 1.2 x 2.4in Package List 1 x Battery Protector Board