What is the flashing red light on the roof for?

Aviation obstacle lights mainly reflect the outline of buildings, and pilots can judge the height and overall outline of buildings through them, which can provide warnings for planes and other planes, prevent planes from misjudging their routes and avoid colliding with high-rise buildings, similar to the role of ocean lighthouses.

The flashing red light on the roof is an aviation obstacle light. Flashing 20 to 70 times per minute can provide instructions for flying high at night to prevent collisions.

Flashing and lighting at night, rainy days, foggy days and other meteorological conditions with low visibility to guide the aircraft and prevent the aircraft from misjudging the route.