... approved 5.Good quality and best price 1. Principle:1, Radar controlled, test ambient movement intelligently, auto-adjust work ... a car closer and closer(5-10meters, adjustable), auto-sensor receive signal and transmit to let light fully work ... :Parking lot, basement, elevator, passageway, washroom, park,bus station, villa and other 24hours lighting area. 5. Certificate:CE, RoHS6. Quality guarantee ...