... the ground when you open the car door ,and will turn off when you close the door3.. ... 6. It can be installed in both left and right door.Courtesy door light make your car artistic ... , Harman,AMG, JP, GARSON, FOX, King Kong and so on. About 100models for your choose,Customer's ... to avoid damaging its lifespan Please access the positive and negative poles of the power through voltage regulator rectifier. ...