Features 1、This is a under‑voltage switch module used to turn off the power of load in the event of the voltage dropping below a set value 2、When the battery voltage increases to a set value, the module will automatically turn on load again 3、Designed with a LED indicator to show if load is cut off or turned on 4、Both turn‑off and turn‑on voltage value can be adjusted by simply adjusting potentiometer 5、This protection board will help you to protect battery from over‑discharging and prolong battery life Specification Features: Designed with a LED indicator to show if load is cut off or turned on. This protection board will help you to protect battery from over-discharging and prolong battery life. Specifications: Suitable Battery Voltage: 12V Voltage Error: ±0.1V Load Current: 10A Size: Approx. 5 x 3 x 1.7cm/2.0 x 1.2 x 0.7in Weight: 21g(approx.) Package Includes: 1 x Protection Board Note: Please note that this product is an undervoltage protection board and has no charging function. Package List