Which type of airport light assists pilots in visualizing wind direction at night?

Wind cones are specifically designed to provide pilots with visual cues regarding wind direction and speed. They are typically made of lightweight materials and are placed at various locations around the airport, often near runways and taxiways. When the wind blows, the cones will align themselves with the wind, allowing pilots to see the direction from which the wind is coming. This information is crucial, especially at night or in low-visibility conditions, as it helps pilots make informed decisions regarding takeoff and landing.

The other types of lights listed have different functions. Obstruction lights are used to mark tall structures that might pose a hazard to air navigation, while airport rotating beacons provide general indications of the airport's location. Runway entrance lights are designed to guide pilots as they approach the runway, but they do not indicate wind direction. Thus, the wind cones serve a unique and essential purpose in aiding pilots' understanding of wind conditions in a straightforward and effective manner.