The light complies with A / B low light intensity obstruction requirement of ICAO standard and CAP168 specification. It is suitable for Zone 1 and Zone 2 location in explosive gas environment such as offshore oil platforms, oil tanker, chemical tanker and oil storage tank. It serves as a warning for aircraft and is suitable for obstacles and facilities with a height less than 45 meter, as well as for use in conjunction with medium light intensity obstruction light when height exceed 45 meters.