When is it advisable to use high beams?

Using high beams in open countryside when there is no oncoming traffic is advisable because high beams provide greater visibility over longer distances. This is particularly beneficial in rural areas where road lighting may be limited and visibility hazards, such as wildlife or obstacles, could exist. With no oncoming traffic to blind, drivers can utilize the increased illumination of high beams to see further ahead, helping to react to potential dangers sooner.

In contrast, heavy city traffic generally requires low beams to avoid blinding oncoming drivers and pedestrians. During the daytime, visibility is usually sufficient without the need for high beams, and using them can create glare for other road users. In foggy conditions, low beams are preferred since high beams can reflect off the fog and reduce visibility.