Xenon Flash Tubes

Xenon flash tubes, also known as strobe lights, have a rich history in aviation. They are used for various purposes, including aircraft warning lights, obstruction lighting, and even in some aircraft landing lights. These tubes work by quickly discharging energy stored in a capacitor through a xenon-filled tube, creating a bright flash.
Key aspects of xenon flash tubes in aviation
Development
The xenon flash tube was initially invented by Harold Edgerton in the 1930s for high-speed photography.
Function
In aviation, they are used to signal obstacles, warn aircraft of obstructions, and provide supplementary lighting for landing.
Modern applications
Xenon strobes are still used, but there's a growing trend towards LED-based systems due to their durability, lower energy consumption, and reliability, according to Eaton.
Types
Aviation lighting systems include high-intensity white strobe lights, red beacons, and obstruction lights (which can also be Xenon-based).
Regulations
These lights are subject to regulations like FAA Type L-856 and FAA-AC 150/5345-434F.