What is the difference between low beam and high beam?

[StAmy]

The difference between low beam and high beam lies in their icons: the high beam icon has straight lines pointing forward, while the low beam icon has lines pointing downward. Usage scenarios for high and low beams include: 1. When overtaking another vehicle, the driver should turn on the left turn signal in advance and switch between high and low beams or sound the horn to alert the vehicle ahead to yield; 2. When unfamiliar with the road and needing to read road signs or other indicators, the high beam can be used but should quickly revert to low beam; 3. When driving at night with no streetlights, poor illumination, or in conditions of low visibility such as fog, rain, snow, dust, or hail, the vehicle should turn on headlights, clearance lights, and taillights. However, high beams should not be used when following another vehicle closely in the same direction.