... 2, When driving a car closer and closer(5-10meters, adjustable), auto-sensor receive signal and transmit to let light fully work at ... .3, After your car parked and left, auto-sensor will automatically turn down at 5W(adjustable) for energy saving. A.Without any movement ... in working condition to black out. 6. Compare to PIR sensor T8 and voice controlled T8, avoid air machine, automobile horn, ambient ...