I HAVE A 20AMP BREAKER IN MY PANEL WITH 12/2 WITH GROUND WIRE GOING TO A JUNCTION BOX WITH ONE OUTLET ON THIS CIRCUIT, MY QUESTION IS CAN I CONNECT IN THIS JUNCTION BOX 14/2 WITH GROUND TO GO TO A OUTSIDE MOTION LIGHT. I WOULD HAVE 12/2 WITH GROUND CONNECTING TO A 14/2 WITH GROUND.