The medium intensity obstruction light AOL304-2006 is part of the Heliport Lighting System for wind energy plants and is a combined obstruction light consisting of:
- white medium intensity obstruction light for day and
- a red obstruction light for night use.
It is designed in accordance with the recommendations of ICAO Annex 14 and requirements to climatic and mechanical stress according to FAA.
The red obstruction light part is available as type B (2000 cd flashing), type C (2000 cd steady) or W red (100cd flashing).
The main features are: