Hayes Syncronizer (R) LED Indicator Trailer Brake Control w/Quik Connect for 4 Brakes 81725 17-0120

Time based brake control is used for 2 to 4 electric brakes. Features fully functional in reverse and LED indicators. It supports electric over hydraulic brake system. Includes a wiring harness. The longer the brake pedal is depressed the greater amount of current delivered to the trailer brakes, until pre-set brake power setting is reached.