Abstract: A moving signal light for both stationary or traveling vehicles and equipment. The unit can be mounted selectively either inside or outside the vehicle and is controlled either automatically in response to a collision or by the drivers action to provide a flashing moving conspicuous warning light to both traffic and to pedestrians. The unit is activated in one of four ways; thru the brake switch, thru a reverse or back up switch, by a manual switch, or by the automatic collision switch. The movement of the variable speed variable intensity light is controlled by a motion detector in combination with a relay or by the manual switch which has two operating modes.