Hayes Impulse brake controller is electronic and setting the power on a brake control has never been easier with the digital display on this time-based brake control. The digital display shows power in increments of 5% to troubleshoot miss-wired trailers. A SHORT-PROOF capability provides additional safety. Extra ease of operation is is given by the single-power adjustment wheel. Features a weatherproof adapter that provides 6-way round or 4-wire flat towing capability from one location. Plug-In Simple„¢ makes installation easy! Unit is pre-wired for easy plug-in to an existing 4-wire flat. No more running wires through the fire wall or searching for the stop switch. Hayes Impulse Brake box can be mounted in any direction and display can be reversed if unit is mounted upside down. For 2, 4, and 6 brake systems. Special order item, call for availability.