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Flash Products

Vanguard® Medium FTS 370 Solar Powered Lighting

Dual and White Solar Obstruction Lights

Vanguard Medium offers numerous monitoring and control options and is one of the most versatile lighting systems on the market.  Designed for ease of installation, the Vanguard Medium FTS 370d LED tower lighting system is suitable for structures between 200′ and 700′ AGL. The system can be configured to meet requirements for both D and E- type structures:


  • FAA D-type towers – white L-865 or catenary L-885
  • FAA E-type towers – dual (red and white) FAA L-864/L-865 or catenary L-866/L-885


The FTS 370 solar-powered tower package includes everything needed for an FAA-approved solar obstruction lighting system. The lighting system complies with FAA AC 70/7460-1K and 1L and is ETL certified to FAA AC 150/5345-43J. Custom-sized solar power supplies provide power when grid power is unavailable. Systems are sized based on load and geographical location, which dictates solar irradiation. The system will power the lights with at least 7 days of autonomy per FAA Engineering Brief No. 76, meaning the system can function at least 7 days in between charges.

United States solar zones

United States solar zones



FTS 370 Features

  • Infrared LEDs – NVG and NVIS compatibility under FAA AC 150/5345-43J
  • Interleaved LEDs and by-pass circuitry provide longer life by allowing the loss of individual LEDs up to the 25% limit
  • Industry-leading IEC 61000-4-5 surge immunity to 25kA protects against 99% of lightning strikes
  • Ruggedized photodiode in metal housing with shielded cable
  • Input power breaker switch eliminates replaceable fuses
  • Patented Fresnel optics to minimize ground scatter
  • Aircraft Detection Lighting Systems (ADLS) interface
  • Automatic failsafe switches to day mode after 19 hours of no mode change; can be disabled if necessary
  • Configurable to meet AC 70/7460-1L
  • 4-line OLED backlit display for visibility in any lighting conditions
  • Dry contact monitoring (day, night, marker, PED, GPS, comm alarms and mode status)
  • 5-year warranty


FTS 370 Options

  • SMART Card – monitor and control the system remotely and receive full diagnostic information through LTE modem or ethernet-based connectivity. SNMP, Modbus or Eagle Protocols can be used.
  • LTE modem for improved communication stability
  • Outdoor Wi-Fi antenna for onsite diagnostics and lighting inspections
  • GPS synchronization
  • Upgrade firmware remotely
  • TECK90 Support – provides protection from RF interference and damage on high-power broadcast towers up to 700′ AGL

Please fill out the form below or call 615.503.2000 with questions or to order this product.

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    Input Voltage

    100-240 VAC
    ± 48 VDC (optional)


    50-60 Hz

    Marker Power Consumption

    2.1 watt per marker*
    3.4 watts per marker with IR

    Marker Dimensions

    9” x 2.75” x 2.13” (228.6 x 69.9 x 54.1 mm)

    Marker Weight

    1.6 lbs. (0.7 kg)

    FH Dimensions

    15.75″ dia. x 7.31″ height

    FH Weight

    26.3 lbs (11.92 kg)

    FH Aerodynamic Wind Area

    99.125 in2

    Controller Dimensions

    23″ x 17.13″ x 6.44″

    Controller Weight

    44 lbs. (20 kg)

    Protection Rating

    IP65, NEMA 4x

    * Not included in system consumption


    White Day

    80 watts (70 watts with IR)
    40 fpm
    20,000 ± 25% ECD

    Red Night**

    40 watts (40 watts with IR)
    20/30/40 fpm
    2,000 ± 25% ECD

    White Night

    40 watts (40 watts with IR)
    40 fpm
    2,000 ± 25% ECD

    ** Only 30 fpm flash rate is applicable for FAA certified applications filed under AC 70/7460-1L, and requires the use of L-810(F) depending on the height of the structure.


    White Day

    110 watts (100 watts with IR)
    60 fpm
    20,000 ± 25% ECD

    Red Night

    50 watts (50 watts with IR)
    60 fpm
    2,000 ± 25% ECD

    White Night

    50 watts (50 watts with IR)
    60 fpm
    2,000 ± 25% ECD