For high-voltage transmission cables and towers less than 150 meters high, medium intensity aviation obstruction lights emitting white light can be installed at the top. Regardless of the type of aviation obstacle light, the number and arrangement of aviation obstacle lights at different heights should be able to see the object or its "group outline" from all aspects, and consider the simultaneous and sequential flashing of obstacle marker lights to achieve a clear warning effect.

Aviation obstruction lights, also known as navigation aid lighting equipment, are special lighting fixtures that identify obstacles and belong to the aviation aid lighting equipment industry. Aviation obstruction lights are the types of lights under their seats. In order to distinguish it from general purpose lighting, aviation obstruction lights are not always on but flashing, low intensity aviation obstruction lights are always on, medium intensity aviation obstruction lights and high intensity aviation obstruction lights are flashing, with a flashing frequency of not less than 20 times per minute and not more than 60 times per minute. The function of aviation obstacle lights is to display the contour of structures, enabling aircraft operators to determine the height and contour of obstacles, serving as a warning.