Reese Voyager brake controller uses Tekonshas patented braking sensor for smooth and secure trailer braking and is a proportional based brake control. It matches the trailer's braking to that of the vehicle's braking to provide smooth, easy towing. Compact size and features, like a bi-colored LED brake monitor (to assure a complete connection to trailer brakes and give an indication of relative braking power being applied) make the Voyager extremely versatile. As braking power is applied, the LED changes from green(completed circuit) to red indicate relative braking power. Minimizes interference with tow vehicle electrical systems, uses a four-wire hook up, has a broad setting range and is compatible with most any vehicle. Use Voyager for 2, 4, 6 & 8 brake trailers. Includes 5 year limited warranty.