The powerful Fenix TK17 tactical flashlight offers a top light output of up to 3600 lumens (ANSI) and a beam distance of up to 330 meters. The flashlight is powered by a single 21700 6000 mAh Li-ion battery with a USB-C port and a powerbank function, allowing you to charge your phone or other electronics in an emergency. The battery provides power for up to 60 hours of illumination. Its very solid and waterproof design makes this tactical flashlight suitable for harsh outdoor conditions, professionals, armed forces, and hunting. The Fenix TK17 LED flashlight uses a dual tactical switch for faster and more reliable operation in crisis situations. For example, it can be quickly activated directly into Strobe mode or the highest output mode. The head of the flashlight features a striking bezel made of stainless steel, additionally equipped with three tungsten steel tips. Therefore, the flashlight can be effectively used to break glass in emergency situations or for self-defense.

All flashlight parameters (luminous flux, battery life, waterproofness, beam distance, and impact resistance) are measured in accordance with the ANSI/NEMA FL 1-2009 standard.

Fenix TK17 LED Flashlight Parameters

• Uses a high-performance CREE XHP50.3 HD LED with a lifespan of 50,000 hours.
• Five output modes: Burst 3600 lumens (3 h 45 min) -> 1000 lumens (3 h 50 min) -> 350 lumens (8 hours) -> 30 lumens (60 hours) -> Strobe 3000 lumens (strobe flashing with variable frequency).
• Parabolic aluminum reflector for a perfect light beam with a distance of 330 meters (27,300 cd).
• Runtime in Burst mode is the total time including reduced output due to overheat protection activation.
• Powered by a 21700 type 6000 mAh Li-ion battery with USB-C port and powerbank function (included in the package).
• Electronics with digital power regulation and reverse polarity protection.
• Dual spring system - high resistance of the flashlight when used on a weapon.
• Intelligent overheat protection.
• Dimensions: 14.85 cm (length) x 3.6 cm (head diameter) x 2.54 cm (body diameter).
• Weight: 197.2 grams including battery.
• Made of aircraft-grade hardened aluminum type A6061-T6.
• Impact resistant to drops from a height of 1 meter.
• Trapezoidal threads highly resistant to wear.
• The flashlight has memory and always turns on in the last set mode (does not apply to Strobe).
• Durable, hard-to-scratch surface - Type III hard anodized.
• Waterproof and dustproof according to IP68 standard (tested under water at a depth of 2 meters for 30 minutes).
• Toughened ultra-clear glass lens with anti-reflective coating.
• Dual tactical switch on the tail end of the flashlight (momentary on/off function).
• Sturdy clip for safe and easy carrying of the flashlight (removable).
• Thanks to its design, the flashlight does not slip in the hand and does not roll when placed down.
• Included with the flashlight are a Fenix ARB-L21-6000B battery with USB-C port and powerbank function, USB-C/USB-C and USB-A/USB-C charging cables, a wrist lanyard, a belt holster, and a spare O-ring.
• Optional accessories available for purchase: Fenix ALR-01 tactical ring, remote pressure switch AER-05 and AER-04 (without strobe, maximum output limited to 1200 lm), AOD-M white diffuser, AOT-04 white and red traffic wand.
• The following accessories are also compatible with the flashlight: ALG-16 M-LOK mount, ALG-15 quick-release rail mount, ALG-00 quick-release rail mount, metal magnetic barrel mount, plastic magnetic barrel mount, scope mount, metal scope mount, Fenix ALD-05 helmet strap, Fenix bike mount, ALP-10L holster, ALP-20 holster.

Operating the Fenix TK17 Flashlight

From the factory, there may be an insulating cap on the battery inside the flashlight. Remove it from the battery before first use.

To turn on, press the larger tactical button located on the tail end of the flashlight; for momentary activation, lightly press the button. Press the adjacent mode switch button to cycle through the output modes anytime during operation. To switch to the strobe mode while the flashlight is on, press and hold the mode switch button for about 0.5 seconds. To turn the flashlight on directly into strobe mode, press and hold the mode switch button. The BURST mode (3600 lumens) can also be directly activated at any time by pressing and holding the main tactical button for 0.5 seconds.

Intelligent Overheat Protection - As the flashlight reaches a high output of 3600 lumens, its temperature increases. If the temperature exceeds 60°C, the output will automatically decrease. Once the temperature drops below 60°C, the output will automatically increase again.

Battery Level Indication - Turn on the flashlight with any button for less than one second, then the battery level indicator next to the switch will light up for 3 seconds. If the flashlight remains on longer, the indication will not activate. If the indicator LED glows green, the battery is charged to more than 85%. Green flashing means 50-85% capacity. If it glows red, it is charged to 25-50%. Red flashing indicates that less than 25% of the battery capacity remains.

Low Battery Warning - The flashlight will gradually automatically downshift to the lowest output mode. If it is already in the lowest mode, it will flash 3 times every five minutes.

Powerbank features

Plug the USB cable into the side USB-C connector and plug the USB device to be charged into the other end of the cable. The remaining battery capacity in powerbank mode is indicated by three LEDs around the plus pole:

• all indicator LEDs are off - 0% of the battery is discharged
• one flashes - 1-5% charge level
• one is lit - charge level 5-33%
• two lit - 33-66% charge level
• three lit - 66-100%

Charging

• Remove the battery from the flashlight and plug the USB-C cable into the port near the positive terminal of the battery.
• During charging, the three blue indicators on the battery will light up sequentially. Once all three indicators remain constantly lit, the battery is fully charged.
• The charging time for a completely discharged battery is approximately 4 hours with a 5 V / 2 A USB adapter.

Warning

• Use only high-quality rechargeable 21700 type batteries with protective electronics.
• Do not shine the light on flammable objects at close range to avoid damaging them or causing a fire due to high temperature!
• Remove the battery or loosen the tail cap to prevent accidental activation during storage or transportation in an enclosed environment.
• Place this flashlight out of the reach of children and do not shine it directly into anyone's eyes!
• Insert batteries with the positive pole towards the head of the flashlight.
• If the protective rubber O-rings appear damaged after prolonged use, replace them. The rings should also be lubricated to prevent rubber erosion. By following these rules, the flashlight will be properly protected against water.
• If the flashlight flickers, does not switch to higher output modes, or does not light up, it may be due to one of the following reasons:
  • The battery is discharged - charge or replace it.
  • The contacts inside the flashlight are dirty – clean them with a cotton swab dipped in alcohol.
  • The head, body, or tail cap of the flashlight is loose, tighten them.