High-rise Structures, Buildings need markings as per local civil aviation norms. Avaids high intensity, medium intensity and low intensity obstruction warning lights make these engineering marvels conspicuous during day as well as night.
Low intensity lights are used for structures which are less than 45 meters tall. Medium intensity flashing lights are used if the structures are taller than that. For very tall structures high intensity lights are required.
Lights for high-rise structures require good protection against harsh weather and against lightning. Avaids lights make it easy to ensure conformance to civil aviation norms.