TWR Products


Used For: UtilitiesWind Farm

Categories: Red Lighting

  • Description

    FAA Type L-810 / ICAO Type A&B Red LED Solar Lighting System

    The OL1-ST is a low intensity red LED solar-powered obstruction light that features a diverse range of applications including marking of wind turbines, bridges, towers and other structures that present a hazard to aviation. The wide asymmetrical vertical profile meets or exceeds the requirements of the FAA L-810 and ICAO types A & B obstacle lights.

  • Key Features

    Easy Programming

    • 10 CD programmed for ICAO Type A hazard light
    • 32.5 CD programmed for ICAO Type B hazard light and FAA Type L-810 obstruction light
    • Beacon spread of 10° at 50% peak intensity
    • Peak intensity at 8° above horizontal
    • Automatic Schmidt-Clausen intensity correction for short flashes
    • Available in 12Ah and 24Ah
    • Sized to allow usage over wide range of locations
    • Long life Lead Crystal battery capable of being charged down to a temperature of -30°C to +50°C
    • Designed for 12 year service life (excluding battery)
    • Warranty: 3 years for fixture and 1 year for battery
    • Waterproof body up to IP-68

    Easy Programming

    Using the IR Remote, user can program one feature at a time; the OL1-ST confirms the settings by flashing the programming code back to the user. Programmable values include:

    • Flash characters
    • Effective intensity
    • Day/night transition levels
    • Synchronisation control
    • Sleep and test modes
    • Transport mode (allows unit to be programmed prior to deployment)
    • Low battery voltage cut out

    Easy Programming

    The OL1-ST complies with:

    • United States Federal Aviation Administration
      AC 150/5345-43H Specification for Obstruction Lighting Equipment
    • ICAO Annex 14, Volume I
      International Standards and Recommended Practices
      Seventh Edition, July 2016
  • Specs


    • Battery Voltage: 12 VDC
    • Operating Voltage: 9 - 18 VDC
    • Haze Solar Gel Battery: 12Ah or 24Ah (2x12Ah)
    • Battery Life: 6 years estimated
    • Charging: Stops at -30°C
    • Solar Panels: Mono-crystalline
    • Solar Panel Orientation: Vertical; 4 panels 90° in azimuth
    • Current for fixed character intensity at +6° and +10°:
      • FAA L-810: 85 mA
      • ICAO B: 115 mA
    • Night Off Current: 2.5 mA (4.5 mA with GPS)
    • Day Current: 0.3 mA
    • The GPS sync options require 10 mA for 2 minutes every 20 minutes (1 mA avg)


    • Operating Temperature: -30°C to +50°C
    • Ingress Rating: IP-68 (1 Hour immersion in 1.5 metres of water)
    • Cooling Pressure: Convection
    • Equalisation: Membrane in solar body
    • Salt: Continuous exposure to saltwater and spray
    • Wind: 140Kt
    • Ice Loading: 25kg/m²
    • Shock/Vibration: 75g shock / 5g vibration in all directions


    • Obstacle Light
      • Lens: Acrylic
      • Sealing: Lens glued in position
      • Bird Spike: Plastic center spike
    • Solar Power Pack and Base
      • Body and Base: Injection molded UV-stable Polycarbonate O-Ring
      • Sealing: O-Ring
  • Options

    Optional Features

    • GPS Synchronisation
    • Data Ports: RS-232 or RS-485
    • External charging plug
    • Monitoring via:
      • Alarm/monitoring wire (beacon healthy)
      • RS-232 or RS-485 data port
      • Alarm/monitor connection option
  • Downloads