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SS-125 Obstruction Strobe Light

FAA Type: L-856 and L-857

The StrobeGuard SS-125 is a single enclosure obstruction light designed to meet or exceed the requirements of Advisory Circular 150/5345-43. The enclosures are fabricated from 304L stainless steel. All plug-in printed circuit boards are protected with a coating which meets the physical and electrical requirements of MIL-I-46058B. The SS-125 is supplied with a lightning arrestor capable of withstanding repeated 10,000 ampere current surges. Operated with the SS-122 Controller, the system is completely self-activating for monitoring and identifying any malfunctioning light and is equipped to initiate a remote alarm. The number of SS-125 obstruction lights used on an installation depends upon the type of obstruction and its height.

  • FAA Type: L-856 High Intensity Lighting
  • ICAO Type: Type A High Intensity Obstacle Light
  • Compliant for use with: ICAO Annex 14, Canadian Aviation Regulation 621.19, ICAO Annex 14, MIL-C-7989, DGAC of Mexico, FAA Advisory Circular AC 150/5345-43E

(Product Sheet PDF)

Photometric Specifications:

  • Day: 200,000 candela ± 25%
  • Twilight: 20,000 candela ± 25%
  • Night: 2,000 candela ± 25%
  • Beam Spread: 3° Vertical minimum
  • Horizontal Coverage: 120° coverage
  • Cut off Angle: <3% light output at -10° Vertical
  • Flash Rate: 40 Flashes per Minute (FPM)


  • Temperature :-55°C to +55°C, -67°F to +131°F
  • Humidity: 95% relative humidity
  • Miscellaneous: Will withstand exposure to wind-blown rain from any angle, Salt-laden atmosphere, windspeed of 240kph (150mph)


  • Weight, Controller: 11kg (24 lbs)
  • Dimensions, Controller: 14” H x 12” W x 6” D
  • Weight, Flashhead: 37kg (82 lbs)
  • Dimensions, Flashhead: 14.4” H x 16.2” W x 12.75” D
  • Enclosure Rating: 304 Stainless Steel, NEMA 4X


  • Input Voltages: 120, 208, 240, 277, 380, 480V
  • Input Frequency: 50 or 60 Hz
  • Power Consumption: 0.55kVA per flashhead
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