What type of lights are used for runway and taxiway edges?

Runway and taxiway edges are typically illuminated using light-emitting diode (LED) lights due to several advantages they offer. LED lights are highly efficient, consuming significantly less energy than traditional lighting options, which not only reduces operational costs but also has a smaller environmental footprint. The longevity of LED lights is another critical factor, as they have a considerably longer lifespan than other types, leading to less frequent replacements and reduced maintenance efforts.

Additionally, the brightness and visibility of LED lights can be adjusted to meet operational requirements, providing clear guidance to pilots during takeoff, landing, and taxiing. This is particularly essential for safety, especially in low visibility conditions. The color and orientation of LED lighting are designed specifically for aviation standards to ensure they are easily identifiable from a distance.

Other lighting options like halogen, incandescent, and xenon lights are not preferred for runway and taxiway edges due to factors like higher energy consumption and shorter lifespans, which make them less practical for continuous use in airport environments where reliability and efficiency are paramount.