CMCT45E-LI-XOL200 Low Intensity Aviation Obstruction Lighting System for chimneys/cooling towers

Solution Series No.: CMCT45E-LI-XOL200

Chimneys / cooling towers (painted)

Structure Type



Obstruction Lighting Arrangement

  • All obstruction lights in this system are OL200 low intensity lights, steady burning or flashing 200cd at nighttime
  • At least three units of OL200 obstruction lights are placed near the top level, which is 1.5m-3m lower than the top edge to avoid chemical emissions and heat generated from the chimney or cooling tower. The quantity on top depends on the diameter of the horizontal plane the lights are placed on.

Standard Reference

  • ICAO Annex 14 Volume I 2018, Appendix 5-3: Medium Intensity fixed-red obstacle lighting system, Type C
  • Aerodrome Design Manual Doc 9157 Part 4
  • Australia CASA MOS139

Key Points


Operation Time


Illumination Color

1 level

OB Levels

Low Intensity

Intensity Type

Electric powered

Power Type


Built-in photocell, External photocell, Control box

Control Type



Through built-in dry contacts in OB lights, Through dry contacts in control box

Alarm Via

UPS backup box for AC OB system

Backup Power

Solution Products

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