Fenix TK17 Tactical Flashlight

The Fenix TK17 is engineered for users needing a compact tactical flashlight with outstanding output and reliability under critical conditions. Its A6061-T6 aluminum alloy body with matte anodized finish ensures impact resistance and long life, while the dual tactical tail switches and deep-press forward switch provide instant control—eliminating the need to scroll through lower brightness levels. Delivering up to 3600 lumens and a beam distance of approximately 330 meters, the TK17 dominates darkness in security operations, outdoor search, or emergencies. Integrated stainless steel glass-breaking tips with tungsten inserts add functional versatility for tactical scenarios. Powered by a 6000 mAh 21700 USB-C rechargeable battery, it offers extended runtime up to 60 hours at low settings, a tailcap battery level indicator, and intelligent overheat protection. Dual internal springs ensure stable battery contact under recoil or vibration. Every element targets professional use, with easy maintenance and rock-solid dependability.

Technical Specifications

Maximum Output: 3600 lumens

Beam Distance: ~330 meters

Maximum Runtime: up to 60 hours (on lowest output)

Lighting Modes: four brightness levels plus instant Burst and Strobe modes

LED: CREE XHP50.3 HD, ~50,000-hour lifespan

Color Temperature: ~5700 K (neutral white)

Body Material: A6061-T6 aluminum alloy with hard-anodized finish

Color: matte black

Dimensions: length 148.5 mm; head diameter 36 mm; body diameter 25.4 mm

Weight: ~197 g (with battery)

Battery: 1 × Fenix ARB-L21-6000B 21700 rechargeable Li-ion (6000 mAh) with USB-C bidirectional port

Switching System: dual tactical tail switches for instant Burst and constant-on, forward deep-press switch for momentary, plus function button for mode cycling

Battery Level Indicator: integrated on tailcap

Intelligent Overheat Protection: steps down output above ~60 °C, restores previous level upon cooling

Dual-Spring Internal Structure: ensures stable contact during weapon mounting or shock

Glass-Breaking Tips: three stainless steel tips with tungsten inserts

Waterproof/Dustproof Rating: IP68 (temporary submersion, dust ingress protection)

Spare O-rings for seal maintenance

Clip: stainless steel with titanium coating for secure attachment

Package Contents

Fenix TK17 tactical flashlight with ARB-L21-6000B battery installed

USB-C charging cables (Type-A to USB-C and USB-C to USB-C)

Nylon holster for belt carry

Wrist lanyard

2 spare O-rings

Multi-language user manual

Detachable titanium-coated clip

User Benefits

Instant access to maximum output via dual switches: essential for tactical or emergency situations.

Flexible runtime: long endurance in low modes, with battery functioning also as powerbank via USB-C.

Rugged construction: impact-resistant, waterproof/dustproof for harsh environments.

Built-in glass-breaking tips for escape or breaching tasks.

Intelligent thermal management prevents overheating during sustained high output.

Stable battery contact under recoil or vibration thanks to dual-spring design.

Complete kit with holster and clip for rapid deployment and versatile mounting.

Designed to meet demands of military, law enforcement, and strenuous outdoor activities.

Warnings & Information

Keep out of reach of children.

Do not shine directly into eyes; avoid hazardous reflections.

Store in a dry place, avoiding prolonged exposure to extreme heat or moisture when not in use.

Use only the specified 21700 Fenix ARB-L21 series battery; do not use other types (e.g., 18650, CR123A, 16340) to prevent malfunctions or hazards.

Follow charging instructions: remove battery for external charging or charge in unit if allowed; monitor charge status via tailcap indicator.

Do not disassemble, modify, or tamper with the flashlight (including switches, circuitry, LED, glass-breaking tips): any alteration voids warranty, GPSR compliance, and Italian regulations.

For maintenance, remove battery and clean contacts with suitable solvent; replace worn O-rings to maintain waterproof seal.

Be aware of heat buildup when using at high output; allow cooldown periods.

Avoid using the torch in ways that endanger others (e.g., shining towards people or animals).

Dispose of exhausted electronic components and batteries in accordance with local regulations.