Wide range input: 12~24V; With low voltage protection: when the 12/24V battery voltage is lower than 11.6V, the product will automatically cut off power output to prevent the car from ignition failure due to low voltage; Connects to the car batter or the power of fuse box, so that can supply power uninterruptedly; Will keep supplying power after the car flamed out; With automatically voltage detection and low-power protection functions.