What is the function of yellow or amber rotating lights on vehicles?

The function of yellow or amber rotating lights on vehicles is to provide 360-degree visibility. These lights serve as a warning signal to other drivers and pedestrians, indicating that the vehicle is either stationary or moving slowly, often in areas where there may be hazards or special operations taking place, such as at an airport ramp or during road construction. The bright, rotating nature of the lights enhances visibility from all angles, ensuring that they can be seen in various weather conditions and lighting situations. This feature is essential for maintaining safety around vehicles that are performing tasks that might otherwise pose a risk to others on the road.