It has to be first considered that PACA-brake is more of a radical design idea than a physical system. It can be built in various configurations to give the same result. In hardware form, it is a micro-controller based system and is designed to be integrated seamlessly into the existing circuitry of an automobile during manufacture or as an aftermarket fitment. The design incorporates dual-color LEDs (Red and Orange) in the CHMSL (Third Brake Light) housing. Thus special tooling and redesign to the existing CHMSL design of the automobile is not required.
Wire harnesses, cables and their routing in the car remain unchanged.