Runway end identifier lights (REIL)

Runway end identifier lights (REIL). A pair of synchronized flashing lights, located laterally on each side of the runway threshold, providing rapid and positive identification of the approach end of a runway.

Related posts:

1. Runway centerline lights
2. Runway edge lights
3. Runway Status Lights (RWSL)
4. Runway visual range (RVR)
5. Runway Datum Point (RDP)