1.sensorial motion with radar 2.Good epistar Taiwan 3.2 years warranty 4.CE RoHS approved 5.Good quality and best price 1. Principle:1, Radar controlled, test ambient movement intelligently, auto-adjust work state.2, When driving a car closer and closer(5-10meters, adjustable), auto-sensor receive signal and transmit to let light fully work at 18W, equals to 45W fluorescent .3, After your car ...