Fenix TK16 V2.0 Reference Manual and SpecificationsUpdated 2 hours ago

The Fenix TK16 V2.0 is a tactical flashlight. This summary is drawn from the manufacturer's official user manual — see the downloadable PDF reference manual on the product page for complete details.

Warning

This flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the flashlight directly into anyone's eyes.
This flashlight will accumulate a lot of heat when used for extended periods, resulting in a high temperature of the flashlight shell. Pay attention to safe use to avoid scalding.
All information provided in this manual is subject to change without prior notice.

Product Features

3100 lumens maximum output; 380 meters maximum beam distance
One Luminus SST70 LED with a lifespan of 50,000 hours
Includes a Fenix ARB-L21-5000U rechargeable Li-ion battery
Advanced Pulse-Frequency Transmission System (APF)
Instant activation and strobe with the dual tactical tail switches
Stainless steel strike bezel inlaid with tungsten steel breaking tips
Toughened ultra-clear glass lens with an anti-reflective coating
Made of durable A6061-T6 aluminum with a premium type HAIII hard-anodized anti-abrasive finish
Size: 5.63'' x 1.34'' x 1.00'' / 143 x 34 x 25.4 mm. Weight: 3.95 oz / 112 g (excluding battery)

Operating Instructions

Switches: the round tail switch is the tactical switch for instant activation; the oval tail switch is the functional switch for output selection and instant strobe.

On/Off: tap the tactical switch to silently and momentarily turn on the light; release it and the light will go out. Fully press the tactical switch to constantly turn on the light; press again and the light will go out.

Output Selection: with the light switched on, single click the functional switch to cycle through Eco, Low, Med, High, and Turbo.

Strobe: with the light switched on, press and hold the functional switch for 0.5 seconds to enter Strobe; click the functional switch once again to return to general mode. With the light switched off, press the functional switch to enter Strobe; release it and the light will go out.

Intelligent Memory Circuit: the light memorizes the last selected output, excluding Strobe. When turned on again, the previously used output of general mode will be recalled.

Technical Parameters (ANSI/PLATO FL1)

Turbo: Output 3100 lumens, Runtime 2 h 40 min*, Distance 380 meters, Intensity 36,100 cd.
High: Output 1000 lumens, Runtime 2 h 50 min, Distance 220 meters, Intensity 12,000 cd.
Med: Output 350 lumens, Runtime 8 h 20 min, Distance 125 meters, Intensity 3,900 cd.
Low: Output 150 lumens, Runtime 19 h 10 min, Distance 80 meters, Intensity 1,650 cd.
Eco: Output 30 lumens, Runtime 43 h 20 min, Distance 40 meters, Intensity 330 cd.
Strobe: Output 3100 lumens.

Impact Resistance: 1 meter | Water Resistant: IP68

Note: according to the ANSI/PLATO FL1 standard, the above specifications are from the results produced by Fenix through its laboratory testing using the included Fenix ARB-L21-5000U battery under the temperature of 21±3°C and humidity of 50%-80%; the true performance of this product may vary according to different working environments and the actual battery used. *The Turbo output is measured in total of runtime including output at reduced levels due to temperature or the protection mechanism in the design.

Battery Specifications

Fenix ARB-L21-5000U (21700, 3.6V): Recommended.
Fenix ARB-L21-4000P (21700, 3.6V): Recommended.

Note: 21700 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Only using quality batteries with circuit protection will reduce the potential for combustion or explosion; cell damage or short circuiting are potential risks the user assumes.

Battery Replacement: unscrew the light tail and insert the battery with the anode side (+) towards the light head, then screw the light tail back on.

Intelligent Overheat Protection

The light will accumulate a lot of heat when used on Turbo output levels for extended periods. When the light reaches a temperature of 60°C or above, it will automatically step down a few lumens to reduce the temperature. When the temperature drops below 60°C, it will then allow the user to reselect Turbo mode.

Low-Voltage Warning

When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Eco output is reached. When this happens in Eco output mode, the light blinks 3 times every 5 minutes to remind you to recharge or replace the battery in a timely manner.

Usage and Maintenance

Disassembling the sealed head can cause damage to the light and will void the warranty.
Fenix recommends using an excellent-quality battery.
If the light will not be used for an extended period, remove the battery, or the light could be damaged by electrolyte leakage or battery explosion.
Unscrew the light tail or take out the battery to prevent accidental activation during storage or transportation.
Long-term use can result in O-ring wear; to maintain a proper water seal, replace the ring with an approved spare.
Periodic cleaning of the battery contacts improves the light's performance, since dirty contacts may cause flickering, intermittent operation, or failure to illuminate — check for a battery needing replacement, dirty threads/contacts, or an incompatible battery (use only the designated Fenix ARB-L21-5000U or ARB-L21-4000P).

What's Included

Fenix TK16 V2.0 flashlight, ARB-L21-5000U Li-ion battery, USB Type-C charging cable, Lanyard, Holster, Spare O-ring, User manual, Warranty card.

Was this article helpful?

Yes