When to Use High Beam and Low Beam Headlights?
2 Answers
High beam and low beam headlights are used in the following situations: 1. High beam: High beam headlights are generally suitable for driving at night on roads without streetlights or with poor lighting, such as on poorly lit national highways or expressways. When the vehicle speed is below 30 km/h, low beam should be used, while when the speed exceeds 30 km/h, high beam can be used to illuminate up to 150 meters ahead, ensuring driving safety. 2. Low beam: When an oncoming vehicle is within 150 meters, the high beam should be switched to low beam to avoid obstructing the oncoming driver's vision. If the other driver does not switch to low beam, immediately reduce speed and repeatedly alternate between high and low beams as a signal. If the other driver still does not switch, slow down and pull over to the right to yield, avoiding any aggressive use of high beams that could impair both drivers' vision and lead to an accident.
Having driven for over a decade, I fully understand that high beams should be used at night or on dark roads to illuminate distant areas and spot potholes or obstacles ahead. However, they must never be used when there's oncoming traffic, as the intense glare can dazzle other drivers and easily cause accidents. Especially on highways, I first turn on high beams to ensure visibility, but immediately switch back to low beams as soon as I spot headlights in the distance. During rainy or foggy conditions, I absolutely avoid using high beams because the light reflects off water droplets, making it harder to see the road. Moreover, in well-lit urban areas, low beams are sufficient—they save energy and ensure safety. Misusing headlights doesn't just risk fines; more importantly, it endangers lives. Developing good switching habits is crucial.
