6.22.7.1.1.

The  lighting  units  for  the  main-beam  may  be  switched  ON  either simultaneously or in pairs. For changing over from the dipped-beam to the main-beam  at  least  one  pair  of  lighting  units  for  the  main-beam  shall  be switched ON. For changing over from the main-beam to the dipped-beam all lighting units for the main-beam shall be switched OFF simultaneously.

a10c0
6.22.7.1.1. The lighting units for the main-beam may be activated either simultaneously or in pairs. For changing over from the dipped-beam to the main-beam at least one pair of lighting units for the main-beam shall be activated. For changing over from the main-beam to the dipped-beam all lighting units for the main-beam shall be de-activated simultaneously. a0c0