ICAO Low Intensity Type A & B Dual Fixture Obstruction Light

ICAO Low Intensity Type A & B Dual Fixture Obstruction Light

AV-OL Series Universal AC or Universal DC Dual Light Fixture

Avlite dual light fixture is a steady burning, low intensity LED obstruction light designed to comply with ICAO LIOL Type A & Type B requirements. The model can be used for marking obstacles up to 45 metres above ground which pose a danger to aircraft at night, such as telecommunication towers, wind turbines, buildings and other tall structures.
Avlite’s LED obstruction lights offer an ultra bright, energy efficient and cost effective lighting solution. The light fixture is available in two configurations, universal DC (12–48VDC) or universal AC (110–240VAC 50/60Hz).


  • Universal 12 – 48VDC or 110-240VAC and solar power configurations
  • User-adjustable between 10cd and 32cd intensity settings
  • Dual light head enables simultaneous twin operation or redundant fail-safe
  • Internal diagnostic checking and alarm contact for remote monitoring
  • Integrated light sensor for day/night operation
  • Corrosion resistant
  • Single LED optic


  • GSM Cell-Phone Monitoring
  • Radio Control
  • RS422/485 communications port
  • Dual visual/IR output for pilots using NVG


Low Intensity Type A & B Obstruction Light, ICAO Annex 14, Volume 1, Sixth Edition, July 2013, ‘Aerodrome Design and Operations’