aircraft warning light; obstruction light
Technical term for lights on tall structures such as buildings, chimneys, and towers to warn aircraft. Used in aviation safety contexts.
Aircraft warning lights are installed on the rooftop of the skyscraper.
At night, the obstruction light flashes red.
航空灯台 is an aeronautical beacon used for navigation, while 航空障害灯 specifically warns of obstacles.
Compound of 航空 (aviation), 障害 (obstacle), and 灯 (light). A straightforward modern technical term.