What does the width light mean?

[DiAlexis]

Automotive width lights are lights that indicate the width of the vehicle to alert other drivers and vehicles behind. When the light switch is turned to the first position, the small lights that illuminate at the front and rear are the width lights. The position of width lights varies depending on the vehicle model: on small cars, they are commonly referred to as small lights; on larger vehicles, they are called width lights on the front and rear sides; on trucks, they are commonly known as side lights. More relevant information is as follows: 1. Automotive width lights are primarily used to indicate the presence and approximate width of the vehicle, helping other vehicles make judgments during overtaking and meeting. 2. Outline lights are similar to width lights, but width lights are more common on large vehicles such as buses, coaches, and trucks, with many on each side. When lit at night, they allow other vehicles to see the length and width of the vehicle to avoid traffic accidents.