Flash Products

FTB 204 High Intensity Lighting

L-856 Xenon Obstruction Light – Split Enclosure

Designed to meet FAA type L-856 obstruction lighting requirements, Flash Technology’s FTB 204 is a high intensity xenon strobe system that produces a white, flashing light for day, twilight and night operations. It is suitable for structures over 500′ AGL (FAA tower types B3-B6 and C3-C6). Split enclosures reduce ozone exposure to extend component life.


FTB 204 Features

  • Certified unidirectional 120° horizontal beam
  • Up to 30’ separation between PC and FH allowing antenna operation during most maintenance
  • 90% of electronics including capacitors are in an ozone free environment resulting in extended component life
  • Available in multiple input voltages
  • System includes EagleSmart controller, handheld programmer and software
  • Custom installation kits and stamped drawings
  • NEMA 4X stainless steel outdoor rated enclosure
  • 2-year warranty on all system components including tubes
  • Remote diagnostics with POTs connection to FTC 121
  • TIA-222G certified for all mounting hardware
  • 24/7/365 monitoring and call center services
  • Component level technical support M-F 7am-7pm Central time
  • Listed on the FAA Buy American Act registry



  • FTC 121 EagleSmart Controller – Onsite or remote diagnostics, programming and monitoring; digital display with drop down menus
  • Optional: FTC 140 Controller – LED display with clear green/red indicators for simple alarm identifications


This product complies with ICAO lighting guidelines.

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


Intertek L856 certificate of conformance (FAA AC 150/5345-43G)
Intertek L856 certificate of conformance (FAA AC 150/5345-43H)



FTB 204 Datasheet
FTC 121 EagleSmart
FTC 140


Current Manual

FTB 20X-2 Rev 6 (1.8MB)
FTC 121-2 Manual Rev 2 with Addendum (3.6MB)
FTC 140-1 Rev 3 (1.11MB)
Manuals for older product revisions can be found in the Knowledge Base.