DWS301A is a classical FAA L810 Tower chimney building Aircraft Obstruction Solar Aviation Warning light with the characteristics of self-contained, durable and anti-UV .It is widely used in the Aviation Obstacle Warning of Towers,Chimneys,Cranes,High-Buildings and other dangerous Prominent Parts as a FAA L-810 or a low-intensity Type A of ICAO. It installs in minutes and requires no maintenance or servicing for up to five years.