Low-intensity aviation obstruction lights are divided according to height. When natural objects or obstacles are higher than 45 meters from the surrounding ground, low-intensity aviation obstruction lights need to be installed.
When the low-intensity aviation obstruction light is displayed on a fixed object, the low-intensity aviation obstruction light of either Type A or Type B must be a constant red light. However, the C-type low-intensity obstruction lights displayed on emergency and security vehicles and the D-type low-intensity obstruction lights displayed on "follow me" vehicles must flash yellow. The low-intensity obstruction lights on objects with limited maneuverability such as passenger boarding bridges must be red and constantly glowing, and their light intensity must be sufficient under the conditions of the light intensity of the nearby lights and the general lighting level for normal viewing of the object. Ensure the sharpness of objects. On other objects with limited maneuverability, low-intensity obstruction lights must at least comply with relevant aviation regulations.
The number and arrangement of obstruction lights, whether it is low-intensity, medium-intensity or high-intensity obstruction lights, must be able to mark objects in every azimuth. If the set obstruction lights cannot meet the basic outline of the marked object, the corresponding obstruction lights will be cancelled.