What is the standard illumination distance for car low beam headlights?
1 Answers
"There is no standard regulation specifying the exact illumination distance for car low beam headlights in meters, only requirements for the luminous intensity and beam position of headlights. However, generally speaking, a car's low beams should illuminate the road 25-35 meters ahead of the vehicle on level ground. Article 48 of the 'Road Traffic Safety Law' stipulates: On roads without central barriers or centerlines, drivers must switch to low beams when meeting oncoming vehicles at a distance of over 150 meters. Low beams must also be used when meeting non-motorized vehicles on narrow roads or bridges. When driving at night on roads without streetlights, under poor lighting conditions, or in low visibility situations such as fog, rain, snow, dust, or hail, vehicles traveling in the same direction at close distances should use low beams. When passing sharp curves, slopes, arched bridges, crosswalks, or uncontrolled intersections at night, drivers should alternately switch between high and low beams as a signal. When driving on unlit roads at night at speeds below 30 km/h, low beams may be used. For speeds exceeding 30 km/h, high beams may be used. On well-lit road sections at night, low beams should be used."