For vertical adjustment: the horizontal part of the &quot; cut-off &quot; line is adjusted to its nominal position 1 per cent below the H-H line which is 10 cm below the headlamp axis on the screen at 10 m distance or which is 25 cm below the headlamp axis on the screen at 25 m distance.
For vertical adjustment: the horizontal part of the &quot; cut-off &quot; line is adjusted to its nominal position 1 per cent below the H-H line which is 10 cm below the headlamp axis on the screen at 10 m distance or which is 25 cm below the headlamp axis on the screen at 25 m distance.