Each federal aviation authority has specific lighting requirements for towers, depending on their type and height. Adhering to your federal aviation regulations is essential to ensure aircraft safety. We offer a complete tower obstruction lighting solution and will help you determine what type of light your tower needs and how many. Click the buttons below to see our guidelines for each federal aviation authority.
For example, most aviation authorities require towers up to 150 feet (45 meters) to be lit with two or more low-intensity, steady-burning red lights on top (known as FAA L-810, ICAO Low Intensity Type B, and CAR CL-810). Towers above 150 feet (45 meters) require multiple low-intensity red lights along its length and a medium-intensity flashing red light on top (known as FAA L-864, ICAO Medium Intensity Type B, and CAR CL-864).
The taller the tower, the more lights required. Under the FAA, some 2000-foot tall towers (approximately 630 meters) require 11 medium-intensity flashing red lights along its length and on top. Certain tower types may require medium-intensity white lights instead of red (known as FAA L-865, ICAO Medium Intensity Type A, and CAR CL-865), or may have dual red-white lights that flash white during the day and red at night.
The image on the right shows two common lighting configurations according to FAA tower lighting requirements. If you know the height and/or type of your tower, see your relevant aviation authority’s requirements using the buttons below.