Tangxi 12V Low Voltage Protection, Battery Under Cut Off Automatic Switch On Protection Undervoltage Controller

【Principle】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 battery is under-voltage. 【One Button Operate】Both turn-off and turn-on voltage value can be adjusted by simply pressing buttons. 【Protection】This controller will help you to protect battery from over-discharging and prolong battery life. 【Restore to Factory Setting】At normal state, press and hold S1 and S2 buttons together, till display shows 888, to restore to factory setting. 【Feature】Large heat sink area for better heat dissipation. 4-port design on the back, makes wiring more convenient. The tail edge design, the chance of blocking the graphics card fan is smaller. 4-layer circuit board, with isolation layer in the middle, stronger anti-interference ability.