flashing beacon
Blinking signal lamp
A flashing beacon is a light that blinks on and off repeatedly to signal warning or attract attention.
These appear on emergency vehicles, at railroad crossings, on construction equipment, and atop tall structures to warn aircraft.
The intermittent flash makes them more visible than steady lights: A flashing beacon marked the intersection where the accident occurred.
- strobeRapidly pulsing light
- warning lightVisual alert indicator
- warningAlert about danger
- sirenWailing alert device
- emergency vehicleUrgent-service transport
emergency · red alert · hazard lights · lighthouse · control tower · hazard · pulse · amber · signal · rotating · alert · tower · roadwork · road construction · caution · high visibility · blink · light