TT105E-MI-1F865 White Medium Intensity Aviation Obstruction Lighting System for telecommunication towers

Solution Series No.: TT105E-MI-1F865

Telecommunication towers (unpainted)

Structure Type



Obstruction Lighting Arrangement

  • One F865 white medium intensity obstruction light on top of a telecom tower, white flashing 20-60FPM, 20,000cd at day and 2,000cd at night

Standard Reference

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

Key Points


Operation Time


Illumination Color

1 level

OB Levels

Medium Intensity

Intensity Type

Electric powered

Power Type


Built-in 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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