This switcher is designed to add more video inputs for cameras when it's connected with video interface for different car .
Four video outputs are shared with one video channel with the same power line.
When each camera receives power from the corresponding headlight, the display can show the correct video channel by turning on the left and right indicators or backup.
The product itself has designed the product power and the camera supply circuit, carries on the to the camera and the vehicle circuit.
Adopt remote control, which has easier operation, convenient for using.