How many times should the high beam be switched to alternating high and low beams?

[VonAdam]

Switch back and forth twice to complete the alternation between high and low beams. Below is an introduction to the use of lights: 1. When driving at low speed: Use low beams when the speed is below 30 km/h. Under normal conditions, the lights can illuminate beyond 30 meters. 2. When passing through an intersection: Slow down 50 to 100 meters before the intersection, switch from high beams to low beams, and turn on the turn signal to indicate the direction of travel. 3. When the distance to an oncoming vehicle is 150 meters: Switch from high beams to low beams to avoid obstructing the vision of the oncoming driver. If the other party does not switch to low beams, immediately slow down and continuously alternate between high and low beams to signal them. 4. On well-lit roads: Use low beams when driving on well-lit roads.