Is it allowed to drive a car in the dark if the front right dipped-beam headlight has failed?
Explanation
The rules forbid driving in the dark only when the front left headlight is out. If the right one has failed, driving is allowed, but you should fix the fault as soon as possible.
KET reference: KET 234.5 p.: in darkness or poor visibility, driving is prohibited if no front left lamp — dipped-beam or fog — is lit (the right one failing does not bar driving while the left works).