Tekonsha's universal 4-flat tow vehicle wiring kit is designed for vehicles that need a taillight converter. Adapts vehicles with separate turn and stop lights (3-wire system) to standard trailer taillight wiring (2-wire system). Works with either LED and/or Incandescent bulbs (vehicle and trailer). Does not affect the functionality of the tow vehicle's lights. 2.1 amp stop light/turn signal circuit capacity; 7.5 amp taillight circuit capacity. All solid state components in converter. Will not work with low-side switch or multiplex systems. Features 60 inch long, car side 4-flat vehicle connector with cover and 16 gauge bonded wire. Includes complete instructions for installation. Backed by Tekonsha's 1 Year Limited Warranty. From it's humble origins as a manufacturer of RV stairs and steps in 1964, Tekonsha has evolved to become a trusted name in towing safety. The core product line consists of brake controllers, electrical wiring and trailer brakes. The Tekonsha line has long been trusted by professional towers and weekend warriors for worry-free travel.