Fenix TK35UE V2.0 Reference ManualUpdated 3 hours ago

The Fenix TK35UE V2.0 is a high-performance dual mode 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.

Overview

5000 lumens maximum output and 400 meters maximum beam distance.
Three Luminus SST40 LEDs with a lifespan of 50,000 hours.
Powered by two 18650 rechargeable Li-ion power batteries.
Mechanical toggle switch for Tactical, Duty, and Lock mode switching.
The light can be powered by a single 18650 or two CR123A batteries in emergency situations.
Instant strobe activation.
Battery level indication and low voltage warning.
Made of durable A6061-T6 aluminum.
Premium type HAIII hard-anodized anti-abrasive finish.
Size: 5.63" x 1.69" / 143 x 43 mm.
Weight: 7.13 oz / 202 g (excluding battery).

Operating Instruction

On/Off: In tactical or duty mode, tap the tactical switch to instantly turn on the light, release the light will go out; fully press the tactical switch to constantly turn on the light, press again to turn off the light.

Mode Switching: In any state, rotate the toggle switch to select the needed mode: rotate the toggle switch to the left end to enter Tactical mode, rotate the toggle switch to the right end to enter Lockout mode, to the middle to enter Duty mode.

Output Selection

Tactical Mode:

With the light switched on, single click the functional switch to enter strobe mode; single click again to turn back to tactical mode.
With the light switched off, press and hold the functional switch to enter strobe mode; release, the light will go out.

Duty Mode:

With the light switched on, single click the functional switch to cycle through Eco→Low→Med→High→Turbo; press and hold the functional switch to enter Strobe mode, single click again to turn back to the previously used output in Duty mode.

Note: the light memorizes the last selected output excluding strobe. When turned on again the previously used output of Duty mode will be recalled.

Lock/Unlock

Lock: With the light switched on, rotate the toggle switch to the right end to lock the light; at this time, the light will go out and the battery level indicator blinks red and green in turn to indicate the light is locked. With the light switched off, rotate the toggle switch to the right end to lock the light; at this time, single click the tactical switch and the battery level indicator blinks red and green in turn to indicate the light is locked.

Press and hold the functional switch over 3 seconds to start or stop the battery level indicator from alternately blinking red and green.

Unlock: Rotate the toggle switch to Tactical mode or Duty mode to unlock the light.

Battery Specifications

Fenix ARB-L18-3000P: 18650, 3.6V — Recommended.
Fenix ARB-L18 Series: 18650, 3.6V — Usable.
Non-rechargeable Battery (Lithium): CR123A, 3V — Emergency.

Warning: Do not mix batteries of different brands, sizes, capacities or types. Doing so may cause damage to the flashlight or the batteries being used.

Battery Replacement

Unscrew the light head to insert the battery with the anode side (+) towards the light head, then screw the light head back on.

Technical Parameters

Tactical: Output 3500 lumens, Runtime 1 hour 50 minutes, Distance 320 meters, Intensity 26000 cd.
Strobe (Tactical Mode): Output 3500 lumens.
Turbo (Duty Mode): Output 5000 lumens, Runtime 1 hour 40 minutes*, Distance 400 meters, Intensity 40000 cd.
High: Output 2000 lumens, Runtime 2 hours, Distance 250 meters, Intensity 15200 cd.
Med: Output 800 lumens, Runtime 4 hours, Distance 160 meters, Intensity 6100 cd.
Low: Output 350 lumens, Runtime 13 hours 40 minutes, Distance 100 meters, Intensity 2500 cd.
Eco: Output 30 lumens, Runtime 85 hours, Distance 32 meters, Intensity 250 cd.
Strobe (Duty Mode): Output 3500 lumens.
Impact Resistance: 1 meter.
Submersible: IP68.

Note: According to the ANSI/PLATO FL1 standard, the above specifications are from the results produced by Fenix through its laboratory testing using two Fenix ARB-L18-3000P rechargeable Li-ion power batteries 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 a total of runtime including output at reduced levels due to temperature or protection mechanism in the design.

Battery Level Indication

Each time the light is turned on on Tactical or Duty mode, the indicator in the functional switch will indicate the battery level and will last for 3 seconds. If under the locked state, single click the functional switch to check the battery level:

Green light on: saturated 100% - 85%.
Green light flashes: sufficient 85% - 50%.
Red light on: poor 50% - 25%.
Red light flashes: critical 25% - 1%.

Note: this only works with Fenix ARB-L18 series 18650 battery.

Intelligent Overheat Protection

The light will accumulate a lot of heat when used at relatively high modes for extended periods. When the light reaches a temperature of 60°C or above, the light 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 the modes.

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, the battery level indicator constantly blinks red to remind you to recharge or replace the battery.

Note: this only works with Fenix ARB-L18 series 18650 battery.

Usage and Maintenance

Disassembling the sealed head can cause damage to the light and will void the warranty.
Fenix recommends using only a high-quality protected battery.
If the light will not be used for an extended period, remove the battery for proper storage.
Unscrew the tail cap or remove 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 as dirty contacts may cause the light to flicker, shine intermittently, or even fail to illuminate for the following reasons: poor battery level (recharge or replace the battery); the contact or contact point of the battery or flashlight is dirty (clean the contact points with a cotton swab soaked in rubbing alcohol); the battery protection board is in a protective state and unable to be released (take out the battery and reload them); or a single 18650 battery fails to activate Turbo mode (take out and reload the battery, replace a new battery, or use two batteries).
If the above methods don't work, please contact your authorized distributor.

Warning

The flashlight is a high-intensity lighting device capable of causing eye damage to the user or others. Avoid shining the light 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.
Do not shine an object at close range, to avoid burning the object or causing danger due to high temperature.
The LED of this flashlight is not replaceable; so the entire light should be replaced when the LED reaches the end of its life.
If any of the information provided in this manual is changed, the new version of the manual shall prevail; if your included user manual is an old one, it acquiesces that we won't send a new manual.

Included

Fenix TK35UE V2.0 Flashlight, Holster, Lanyard, Spare O-ring, User manual, Warranty card.

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