Changes

[[File:CarLightsDigital.png|thumb|left|250px|Modern digital system for car lights]]

With a digital system, a controller is located in the rear area with power leads going to the lights. A single power/control lead is run from the front of the car to the rear. This is cheaper because digital components are cheap, copper wire is expensive, making wiring looms is expensive, and installing looms is expensive, relatively speaking.

Possible failure points are: