Note the lighting pattern against a wall (use some masking tape if that helps) and just turn the screw until the beam cut-off goes lower. If you have the room, the results will be most accurate at a distance of about two car lengths.
Good tip!Note the lighting pattern against a wall (use some masking tape if that helps) and just turn the screw until the beam cut-off goes lower. If you have the room, the results will be most accurate at a distance of about two car lengths.