There is only one adjustment screw behind your headlamp directly above the high beam.It is about the size of a quarter(silver in color) and you'll need an 8mm bit with a small ratchet. When you face the headlamp you have to turn clockwise to lower the beam. Do not use a power tool to adjust even if the screw is metal, the reflector has a plastic thread and will shredd,and become impossible to adjust the beam. There are certain rules you should follow,(just google headlamp adjustment) full tank of gas, tire inflation, distance from a wall, inclination of the vehicle,etc...By the way, you can only adjust vertically,there is no screw for lateral adjust.