noun
light flashing; flashing light
Refers to the act or state of a light turning on and off repeatedly, often as a signal or warning.
踏切の光点滅は、電車が近づいていることを知らせる。
The flashing light at the railroad crossing signals that a train is approaching.
この装置は異常時に光点滅で警告する。
This device warns by flashing a light when an abnormality occurs.