TC105E-MILI-XF864XOL32100S Medium-Low Intensity Aviation Obstruction Lighting System for cranes

Solution Series No.: TC105E-MILI-XF864XOL32100S

Tower cranes

Structure Type



Obstruction Lighting Arrangement

  • Three medium intensity red aircraft warning lights, red steady or flashing 2000cd±25%, are placed on top of cathead, jib and counter-jib for a fix jib tower crane. For a luffing jib tower crane, two medium intensity beacons are placed on top of luffing jib and counter-jib, respectively.
  • If the tower crane is outside a building, 2-4 low intensity single obstruction lights on middle, red steady>32.5cd. If the tower crane is inside a building, the middle’s low intensity lights are not required.

Standard Reference

  • ICAO Annex 14 Volume I 2018, Appendix 5-2: Medium Intensity flashing-red obstacle lighting system, Type B
  • FAA 70/7460-1L, Red Obstruction Light standard style A

Key Points


Operation Time


Illumination Color

2 levels

OB Levels

Medium Intensity + 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

Battery backup box for DC OB system, UPS backup box for AC OB system

Backup Power

Solution Products

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