Abstract: Sun visors, cab fairings and wings or spoilers mounted on top of cabs, or in rear areas of vehicles are provided with sequencing lights, that is to say power is fed selectively to either a left or right bank of signal indicator lights depending on the direction that the vehicle driver wishes to turn, where each bank is composed of plural lights, such that when a bank of lights is electrically activated the lights are each illuminated in turn beginning with the centermost light and then each adjoining light is sequentially powered, so that the lights appear to travel in the direction the driver is signaling to turn.