At what distance should you switch to low beam when meeting another vehicle?

[KathrynAnn]

Generally, you should switch to low beam when meeting another vehicle at night at a distance of 150 meters or more. The usage of headlights is as follows: 1. On roads without central separation facilities or center lines: When meeting an oncoming vehicle at night, you should switch to low beam at a distance of 150 meters or more from the opposite vehicle. When meeting non-motor vehicles on narrow roads or narrow bridges, you should use low beam. 2. In low visibility conditions: When driving at night without street lights, poor lighting, or encountering low visibility conditions such as fog, rain, snow, dust, or hail, and when a following vehicle is driving close to the vehicle in front in the same direction, you should use low beam. 3. At night: When passing sharp curves, slopes, arched bridges, crosswalks, or intersections without traffic signal control, you should alternately use high and low beams to signal.