Revolving light

a light or lamp in a lighthouse so arranged as to appear and disappear at fixed intervals, either by being turned about an axis so as to show light only at intervals, or by having its light occasionally intercepted by a revolving screen.

See also: Revolving

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The great revolving light on the cliff at the channel flashed warm and golden against the clear northern sky, a trembling, quivering star of good hope.
Whenever it came back, the eyes of all on board, brightened and sparkled like itself: and there we all stood, watching this revolving light upon the rock at Holyhead, and praising it for its brightness and its friendly warning, and lauding it, in short, above all other signal lights that ever were displayed, until it once more glimmered faintly in the distance, far behind us.
She insists upon this preposterous scheme of being a pilot, and will talk of nothing but revolving lights and hidden rocks, and codes of signals, and nonsense of the kind.
plates, with improper number plates, green number plates, ambulances, tinted glass vehicles and vehicles with revolving light.
Islamabad -- Following the directives of Interior Minister Chaudhry Nisar Ali Khan, the Capital Territory Police (CTP) has decided to take action against vehicles using blue revolving light in the city.
SIU team recovered 30 bore pistol along with ammunition, blue revolving light, commando uniform along P-cap, fake wireless set sand white corolla from the nabbed persons identified as Sardar Wali s/o Lashkari Khan r/o Dhok Jellani, Bhara Kahu Islamabad.
The arching, melting, twirling solo for Daniel Proietto seemed to blend in with the revolving light on the floor.
It's got an orange revolving light on the roof because once it and its owner were nearly flattened by a truck that hadn't seen it.
The blaring of a siren and a revolving light will greet the arrival of each miner as they emerge from the depths of the mine.
Mona Hatoum's Misbah, Arabic for lamp, features a revolving light with cutouts as Mona's light moves round images of men with guns show up.
The first solution we tried was a revolving light which gave a good glow and a hypnotic show of lights.
The lighthouse engineer invented the revolving light used to warn ships of danger.