What are width indicator lights?

[ElizabethLee]

Width indicator lights are primarily used to indicate the presence and approximate width of a vehicle, alerting oncoming and following vehicles to facilitate judgment during passing and overtaking. Below is a partial introduction to the differences between clearance lights and width indicator lights: 1. Clearance lights: Clearance lights are used during nighttime driving to make the vehicle visible to others. Also known as width indicator lights, they are commonly referred to as small lights. Clearance lights serve as warning lights. When illuminated at night, they allow other vehicles to discern the length and width of the vehicle, helping to prevent traffic accidents. 2. Width indicator lights: Width indicator lights are warning lights used to alert other vehicles, also referred to as clearance lights or small lights. Another term for them is dusk driving lights.