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: 3V Lumin-us SBT-90 LED, neutral white and cold white optional, mounted on copper DTP MCPCB

Flux: >7000 lm

Intensity: >1850000cd (ANSI throw >2720 m)

Firmware: Tom E’s open-source NarsilM v1.2

User interface:

[1] By default the GT90 is set to use the very intuitive Narsil smooth RAMPING UI. Instant access to a 23 A TURBO mode is also provided.

[2] A more conventional discrete level MODE-SET UI is available as an alternative. Any one of 12 predeFined mode-sets can be selected.

[3] MOMENTARY mode is useful for signaling purposes or rapidly/briefly lighting up targets.

Battery: Four or eight button-top 18650 cells (4S1P or 4S2P). Protected cells are recommended. Cells are not included.

Driver: 80 W, 23 A regulated buck driver with conversion efficiency that exceeds 90%. Parasitic drain while OFF is ~150 uA (~250 μA with button back-light on).

Reflector: 118 mm ID, aluminum, smooth Finish

Lens: Glass with anti-reflective coating

Body: Aluminum with Type III hard-coat anodizing

Tripod socket: Standard 1/4 inch threaded (1/4-20 UNC)

Button: Tactile with back-lit rubber boot

Ingress rating: Equivalent to IP65, do not immerse in liquids

Weight: Approximately 1.8 kg without cells

Dimensions: 135 mm head x 315 mm length