Obstacle Light Classification
The chart below gathered by Plusafe shows the difference and key features of obstruction lights classified by ICAO and FAA.
ICAO standard: International Civil Aviation Organization, ICAO annex 14, Volume I, Aerodrome Design and Operations.
FAA standard: Federal Aviation Administration, Specification for Obstruction Lighting Equipment.
| Classification | ICAO | FAA | ||||||
|
Plusafe Obstruction Light |
ICAO Type | Color | Light Intensity(cd) |
Flash Frequency |
FAA Type | Color | Light Intensity(cd) |
Flash Frequency |
|
Low Intensity |
Low Intensity Type A |
Red | 10cd Night | Steady | L-810 | Red | 32.5cd | Steady |
|
Low Intensity Type B |
Red | 32cd Night | Steady | |||||
|
Medium Intensity |
Medium Intensity Type A |
White |
2000cd Night 20000cd Day/Twilight |
20~60fpm | L-865 | White |
2000cd Night 20000cd Day/Twilight |
40fpm |
| L-866 | White |
2000cd Night 20000cd Day/Twilight |
60fpm | |||||
|
Medium Intensity Type B |
Red | 2000cd Night | 20~60fpm | L-864 | Red | 2000cd Night | 20~40fpm | |
| L-885 | Red | 2000cd Night | 60fpm | |||||
|
High Intensity |
High Intensity Type A |
White |
2000cd Night 20000cd Twilight 200000cd Day |
40~60fpm | L-856 | White |
2000cd Night 20000cd Twilight 270000cd Day |
40fpm |
|
High Intensity Type B |
White |
2000cd Night 20000cd Twilight 100000cd Day |
40~60fpm | L-857 | White |
2000cd Night 20000cd Twilight 140000cd Day |
60fpm | |