TWR Products


Categories: White Lighting

  • Description

    The L550-865 is a medium intensity white flashing LED obstruction beacon designed for reliable day and night time marking of structures that represent a hazard to aviation. It incorporates the benefits of advanced LED and control to meet the challenges of the most demanding applications.

    Originally designed for use offshore on North Sea oil platforms, the L550 features a robust base and lens cover capable of withstanding the harshest environments. The beacon's light weight and single cable installation make it ideal for multiple applications wherein a standalone light or system of obstruction lights are required.

  • Key Features

    • Five year warranty
    • No maintenance required over service life
    • Lightweight with simple single cable connection for easy installation
    • “Smart Switch” aircraft detection input
    • Standalone design with integrated photocell, power supply and monitoring; can be used as a standalone light or as part of a system
    • 15 Year field-proven power supply technology
    • Long life power supply to match LED life, does not use electrolytic capacitors
    • Constant power draw - eliminates high peak power demands; especially important when running from solar system/UPS
    • Stabilized intensity across full operational temperature range
    • Automatic shutdown feature if 25% LEDs are not operating

    Optional Features

    • Internal GPS flash synchronization to operate in unison between multiple obstruction lights
    • Infra-red output at 850nm
    • Wireless or TCP/IP monitoring for beacon failure, heartbeat (active confirmation), power and photocell functionality 
  • Specifications

    Physical Characteristics

    • Beacon dimensions (LxWxH):
      • 20.6”x20.6”x9.4” / 510x510x240mm
    • Beacon weight: 30 lbs / 13.6 kg
    • Controller Dimensions (LxWxH):
      • 15" x 14" x 6" / 381x355x152mm
    • Controller Weight: 15 lbs / 6 kg
    • Design degree of protection: IP65
    • Operating temperature range: -55oC to +55oC/-67oF to +130oF

    Electrical Characteristics

    • Operating voltage: 120/230 VAC nominal; 50/60 Hz
    • Power Consumption: (See table)
    • Connection Details: Supplied with a combined power and alarm connection cable
    • LED protection and diagnostic monitoring for optimum reliability
    • Overvoltage Protection: Built in, designed to meet Class III according to IEC61643-1, Class D


    • United States: FAA AC 70/7460-1L
    • Mexico: DGAC
    • International: ICAO Annex 14
    • Various national approvals

    Additional Info

  • Downloads

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