When to Turn on the Marker Lights While Driving?

[DiCarson]

Marker lights are warning lights on vehicles, primarily used in low visibility conditions (such as driving at night, during dusk, in rainy weather, or in hazy conditions) to alert other vehicles. Marker lights are the outermost lights located at the front and rear of the vehicle. Large trucks also have marker lights on their roofs and sides. Literally, 'marker' means warning, and 'light' refers to the outline, so marker lights serve as warning lights to alert other vehicles. They are installed along the edges of the vehicle's roof, indicating both the height and width of the vehicle.