🚨 Type-A / Type-B ICAO Beacons

Sep 24, 2025

🚨 Aircraft warning lights are needed specifically on fixed obstacles of 45m or less in height, width & length, and placed at the highest practical point. Obstacles of a greater size require additional red lights in order to outline the extent of the obstruction.

The use of this lighting is intended to reduce hazards to aircraft by indicating the presence of obstacles. The tall objects this can apply to are high rise structures, masts, towers, wind turbines, cranes and more.

About ICAO

ICAO warning lights play a critical role in aviation safety by ensuring tall structures such as towers, buildings, and wind turbines remain visible to pilots. These lights, regulated under the International Civil Aviation Organization (ICAO) standards, help prevent collisions, especially during night flights or in poor visibility. With advancements in LED technology, modern ICAO warning lights are energy-efficient, durable, and reliable. By adhering to ICAO requirements, operators help maintain global aviation safety standards while reducing risks in both urban and remote airspaces.

D.G. Controls Ltd offer a range of Low Intensity ICAO Type-A and Type-B beacons. These beacons meet ICAO Annex 14, Chapter 6 requirements for Low Intensity Obstruction warning. Here at deegee we use LED light sources as they are much more reliable than other lamps forms, by using LED lamps it also makes the beacon more energy efficient, gives the beacon a longer life span and provides years of maintenance free operation, which in such hard to reach areas, is a must!

These aircraft warning beacons are static mode, red in colour with a clear lens. Low Intensity Type-A lights have a minimum intensity of 10cd. Low Intensity Type-B lights have a minimum intensity of 32cd.

See our range here: https://renametest.ng15hosting.uk/obstruction-warning

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