The GT was designed by BLF, for BLF, and brought to life by top-tier manufacturer Lumintop. We trust it will serve you well in whatever your endeavors might be! Thank you for supporting this BLF community project.
– the BLF GT project team
Emitter: Three LEDs on a copper DTP MCPCB e.g. Cree XP-L Hi, Nichia 219C, or Luminus SST20
Optic: Standard TIR Optical Lens
Lens: Glass with anti-reflective coating
Flux: ~2800 lm (XP-L Hi)
Intensity: ~10 000 cd ANSI throw ~200 m (XP-L Hi)
Firmware: The FW3A uses free software called Andúril, distributed under the terms of the GPL v3. Code is available from http://tiny.cc/TKAnduril
User interfaces:  By default the FW3A is set to use SMOOTH RAMPING. Instant access to TURBO mode is also provided.
- A more conventional STEPPED RAMPING UI is available if you like discrete modes level. You can choose how many steps you want.
- MOMENTARY mode is useful for signaling purposes or rapidly/briefly lighting up targets.
To exit this mode, physically disconnect power
- MUGGLE mode uses a reduced output.
- It has an electronic LOCKOUT for safety, but acts also as momentary low light.
Other functions: Battery check, sunset, beacon, tactical strobe, party strobe, bike flasher, candlelight, lightning storm
Battery: One flat-top or button-top 18650 cell. An unprotected cell is recommended. Max. length 66 mm. Cell is not included.
Driver: FET+7+1 driver. Low parasitic drain while
Body: Aluminum with hard-coat anodizing
Switch: Electronic tail switch
Ingress rating: Equivalent to IPX7
Weight: Approximately 53 g without cells
Size: 25.5 mm Ø head x 92.5 mm in length.