MK370/371 LED Low Intensity Obstruction Markers

The MK370 and M371 LED from Flash Technology are our non -solar Low Intensity Obstruction lights. 

A direct replacement or retrofit for FAA type L-810 incandescent obstruction lighting markers, Flash Technology’s L-810 LED marker fixtures are available for both AC and DC applications. These compact and efficient marker lights reduce operating costs through nominal power consumption and extended longevity. They also easily install onto existing marker bases without disturbing the existing conduit.

Available in both AC (Marker 370) or DC (Marker 371) variants, both meet FAA L-810, ICAO Type B (6th Edition) and DGAC L-810 specifications.

MK370/371 LED Low Intensity Obstruction Markers


  • AC or DC input power
  • Easy installation with minimal mounting hardware
  • Lightweight and compact design allows for versatile mounting options
  • Available as a single or double unit
  • Program to flashing or steady burn
  • Steady On Intensity of 32cd 
  • Weather, corrosion and vibration resistant
  • Flash brand FREP power cable
  • Patented optics eliminate ground scatter
  • 5-year warranty



  • Infrared (IR) for NVG and NVIS compatibility
  • Single or Dual Fixture

Input Voltage

  120 – 240 VAC, 12-48VDC, 24-48 VDC Infrared     

Marker Dimensions (Single L-810)   

  228.6 x 69.9 x 54.1 mm

Marker Dimensions (Double L-810)

  279.4 x 127 x 222.25 mm

Marker Weight (Single L-810)

  0.7 kg

Marker Weight (Double L-810)

  2.45 kg