What is the reason for the sudden failure of high beams to turn on?

[OCamille]

The reason for the sudden failure of high beams to turn on is a damaged high beam fuse. Below is relevant information about high beams: 1. Concept: High beams refer to the adjustment of light intensity based on the distance of the filament when driving at night. At their focal point, the emitted light is projected parallel, more concentrated, and brighter, capable of illuminating distant and high objects. 2. Usage effect: High beams can improve visibility and expand the field of view. On dark roads without streetlights, the visible range with high beams is significantly greater than with only low beams. Therefore, using high beams in such conditions is highly necessary.