You can adjust the illumination angle of the front light with a screw which can be found behind the front light. Reach in with your hand between the front wheel and the front outer panel. Locate the lower end of the front light and find the adjustment screw.
Disclaimer: Please be aware that a maximum adjustment can blend other drivers and pedestrians and cause dangerous situations. Adjust the front light range very carefully.
Further illumination
In this position the front light is adjusted to the maximum for a maximum range of the front light. The spring is very clearly compressed. For this position the screws need to be turned clockwise:
Short illumination
In this position the front light is adjusted to the maximum for a short range of the front light. The spring is very clearly decompressed. For this position the screws need to be turned counter-clockwise: