Building Obstruction Light L-810, Red Obstruction Light FAA
its the typical obstruction light for buildings.
Prominent buildings and extensive obstructions should be
lighted in accordance with FAA specifications. In the event the
individual objects of a group of obstructions are approximately
the same over-all height above ground, or water if so situated,
and are located not more than 150 feet apart, the group of
obstructions may be considered an extensive obstruction and so
lighted
Type L-810 Aviation Obstruction Light Solar Powered