What color are end lights placed at the end of the runway?

End lights placed at the end of the runway are colored red. This color is chosen specifically because it indicates to pilots that they are reaching the end of the runway. The red lights serve as a visual cue for landing or takeoff situations, enhancing safety by clearly marking the boundary of the usable runway lengths.

In aviation, runway lighting is critical for ensuring safe operations, especially during low visibility conditions. Red end lights can alert pilots to the need for caution as they approach the end of the runway, reinforcing the importance of situational awareness and adherence to safe flying practices.