... left,Power on the left arrow light, the light scanning to the left, right turn, ... DC12Vn outpower ;3Wn input ;common anode n the light size;47X34MMn controller box size :30X60X85MM Product funtion ... controller ,2pcs arrow light n turn left,Power on the left arrow light, the light scanning to the left, ... right turn, turn on the right arrow lights when the power light ...