Within how many meters should low beam headlights be used when meeting another vehicle?

[McElizabeth]

When meeting another vehicle at night, you should switch to low beam headlights within 150 meters of the oncoming vehicle. Relevant regulations: Article 48 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" stipulates: On roads without central separation facilities or center lines, drivers should switch to low beam headlights when meeting another vehicle at night at a distance of more than 150 meters from the oncoming vehicle. When meeting non-motor vehicles on narrow roads or narrow bridges, low beam headlights should be used. When driving at night under conditions of no street lights, poor lighting, or low visibility due to fog, rain, snow, dust, hail, etc., and when a following vehicle is driving close to the vehicle in front in the same direction, low beam headlights should be used. When passing sharp curves, slopes, arched bridges, crosswalks, or intersections without traffic signal control at night, drivers should alternately use high and low beam headlights to signal.