What is the purpose of changing headlights while driving?

[SamanthaRose]

The purposes of changing headlights while driving are: 1. To clearly see the road and pedestrian flow: When two vehicles meet, switching from high beams to low beams can reduce the visual glare and blind spots caused by high beams for both drivers, allowing them to better see the road and pedestrian conditions, which enhances safety. 2. To ensure safety: Changing headlights when turning or meeting another vehicle at night can alert oncoming vehicles to slow down. In noisy environments where drivers may not hear the horns of other vehicles due to various reasons, switching between high and low beams can serve as a signal, thereby creating a better driving environment.