Small changes can make a big difference, so consistent lighting is important. This can lead to subtle but noticeable differences in brightness, color temperature, or color rendering. Do not mix and match incandescent/halogen and LED bulbs or fixtures on a taxiway or runway.The following are a few tips for any type of airfield and runway lighting system. Poor heat management can significantly reduce LED bulb life. Also, LED bulbs do not tolerate high temperatures, so proper thermal management needs to be considered with the fixtures and the types of LEDs used. LEDs do not put out nearly as much heat as halogen bulbs, though, so special types must be considered for airport lighting in colder climates. Bulbs have to be changed far less frequently, reducing both energy costs and maintenance costs. LED airfield bulbs cost signficantly more on a per-bulb basis, but their lower energy usage and longer life provide significant advantages. For airports that experience severe snowstorms, this heat output can discourage snow accumulation on the light fixtures and provide continuous visibility. However, one significant advantage of halogen lamps is the high amount of heat they produce compared to LED. They also have a much shorter rated life than LEDs, so more maintenance is required to ensure burned out bulbs are replaced in a timely manner.
Halogen airfield bulbs cost significantly less on a per-bulb basis, although they use far more energy than LEDs. While many airfields have made the transition from older incandescent and halogen bulbs to LED, halogens hold advantages that LEDs do not.
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