Fenix TK35UE V2.0 Flashlight

$184.00 $139.95

Out of stock

The Fenix TK35UE V2.0 flashlight is newly upgraded to deliver a maximum output of 5000 lumens. The innovative toggle switch allows you to quickly switch between tactical mode, duty mode and the lock-out function. The battery indicator lets you know if the two 18650 Li-ion batteries (not included) need charging. Waterproof, dustproof and impact resistant with a maximum runtime of 85 hours on Eco mode, the TK35UE V2.0 flashlight is ready to easily meet the needs of any outdoor enthusiast as well as military and law enforcement.

SKU: TK35V2UEN/ABarcode: 6942870308432N/A
Max Lumens: 5000
Modes: 8
Battery: 18650 or CR123A

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Max Lumens: 5000
Max Beam Distance: 1312 feet (400 meters)
Max Runtime: 85 hours
Lighting Modes: Turbo and strobe in Tactical mode. 5 brightness levels plus strobe in Duty mode.
Bulb Type: Three Luminus SST40 LED
Size: Length: 5.63” (143mm) Head: 1.69” (43mm)
Weight: 7.13 oz. (202g) excluding batteries
Battery: Two 18650 rechargeable li-ion batteries or four CR123A lithium batteries. *batteries not included.
Included: Holster, lanyard, spare O-ring
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA
Fenix TK35UE V2.0 Flashlight specs chart

More Information

Additional features of the Fenix TK35UE V2.0 flashlight

  • Three Luminus SST40 LED with a lifespan of 50,000 hours.
  • Powered by two 18650 rechargeable Li-ion power batteries or four CR123A lithium batteries (batteries not included)
  • The TK35UE V2.0 can be powered by a single 18650 or two CR123A batteries in emergency situations.
  • Mechanical toggle switch for tactical, duty, lock mode switching.
  • Instant strobe activation.
  • Battery level indication and low voltage warning.
  • Made of durable A6061-T6 aluminum.
  • Premium type HAIII hard-anodized anti-abrasive finish.


Fenix TK35UE V2.0 Flashlight runtime chart

Fenix TK35UE V2.0 Operating Instructions

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 TK35UE V2.0 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.

*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 to lock the light. At this time, the light will go out and the battery level indicator blinks red and green to indicate the light is locked. With the light switched off, rotate the toggle switch to the right to lock the light. At this time, single click the tactical switch. The battery level indicator blinks red and green 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. 

Fenix TK35UE V2.0 Battery Specifications 

TypeDimensionNominal VoltageUsability 
Fenix ARB-L18-3000P186503.6VRecommended√√
Fenix ARB-L18 Series186503.6VUsable
Non-rechargeable Battery (Lithium)CR123A3VEmergency

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. * 18650 Li-ion batteries are powerful cells designed for commercial applications and must be treated with caution and handled with care. Only use quality batteries with circuit protection will reduce the potential for combustion or explosion; but cell damage or short circuiting are potential risks the user assumes. 


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. 


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: 
    A: Poor battery level. 
    Solution: Recharge or replace the battery. 
    B: The contact or contact point of the battery or flashlight is dirty. 
    Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol. 
    C: The battery protection board is in a protective state and unable to be released. 
    Solution: Take out the battery and reload them. 
    D: A single 18650 battery fails to activate Turbo mode. 
    Solution: 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. 


  • The Fenix TK35UE V2.0 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 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.

Product Videos

Customer Reviews

Based on 33 reviews
Saleh Basalem

Nice design and very nice mode option , i have only two point
No USB charging and i have to bay for batteries

Niels Saustrup
Vehicle use or Car Camping

Throws an adjustable bright and wide beam best suited for short and medium range. Not much long range spotlight ability. For me, the excellent and adjustable short range beam is ideal for use as a vehicle utility light. Lights up entire campsite bright enough to find what you dropped or scare two or four legged mystery noise in the bushes. Two battery power is often a real advantage. No disadvantages at all other than it is best for short to medium range, and is not tiny.

Bradley E

Brightest flashlight I've ever owned. Simple operation and not too many light options and no twisting the lens to narrow or widen the beam.. which is just fine with me. I can light up my entire yard with this thing. I have 4 acres! So far battery life has been excellent. Been using it every night to walk my dog. Do not shine this in a dog's eyes or human eyes... (unless it's a bad guy) Pricey, but worth every penny.

Reggie P
one of the best flashlight

Awesome and very nice product. I use it every day at work.
Wish Fenix would add set of baseline Batteries with TK35ue v2.0 rather shipping out without any.

I'm not completely sure why the factory made the decision to ship this model without batteries, but I have noticed that several updated versions of lights that previously did not include batteries are now including them.

Favorite Flashlight

My favorite flashlight is the TK35UE.
It is very comfortable to hold and is easily able to light up more than 5 acres that surround my home.
The 3500ah battery life is great and the light has performed flawlessly for the 3+ years of use.
If you are looking for a reliable bright light with a good throw the TK35UE won't disappoint.

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Fenix TK35UE V2.0 Flashlight

$184.00 $139.95