Tekonsha Voyager (R) LED Indicator Trailer Brake Control for 4 Brakes 9030 17-0106

Proportional brake control includes LED indicators. It uses a 4 wire hook-up(not included). It requires wiring harness and adapter. Broad control range makes setting quick and easy. As braking power is applied, the LED changes color gradually from green (completed circuit) to red, to indicate relative braking power.