This is a under-voltage switch module used to turn off the of load in the event of the voltage dropping below a set value.When the battery voltage increases to a set value, the module will automatically turn on load again.Designed with a LED indicator to show if load is cut off or turned on.Both turn-off and turn-on voltage value can be adjusted by simply adjusting potentiometer.This protection board will help you to protect battery from over-discharging and prolong battery life.Suitable Battery Voltage: 12VVoltage Error: 01VLoad Current: 10AMaterial: PC+Metalcolour: As shownPackage Contents:2 x Protection BoardOnly the above package content, other products are not included.Note: Light 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.