Specifications: Emitter: Luminus SBT90.2, 5700K, mounted on copper DTP MCPCBFlux: 5500 lm Intensity: 1850 kcd (ANSI throw 2720 m) Battery: Four or eight button-top unprotected 18650 cells (4S1P or 8S1P). protected cells not fit. Cells are notincluded. Driver: Texas Avenger V2 Reflector: 118 mm inner diameter, 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: Approx. 1.8kg without cells Dimensions: 135 mm Ø head x 315 mm length Intensity: 1850 kcd (ANSI throw 2720 m) Firmware: Tom E’s open-source Narsil M v 1.3 adapted by Texas_ Ace User interface: [1] By default the GT90 is set to use the very intuitive Narsil smooth RAMPING UI. Access to a 2.5 A TURBO mode is also provided. [2] A more conventional discrete level MODE-SET UI is available as an alternative. Anyone of 12 pre-defined mode-sets can be selected. [3] MOMENTARY mode is useful for signaling purposes or rapidly/briefly lighting up targets. Package include: 1 x BLF GT90LED FLASHLIGHT