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Fenix TK25 UV Tactical Flashlight - DISCONTINUED

$120.00 $89.95

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Max Lumens:


18650 or CR123A
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Product Overview

The Fenix TK25 UV is a tactical flashlight that features an innovative mode switching head that allows you to switch between white light and ultra-violet light. The 3000mW UV light is great for counterfeit currency detection as well as other professional applications. Two tactical tail switches allow you to easily activate the light’s modes. The high-performance flashlight’s white light includes 4 levels of output and variable strobe. The Turbo setting emits a max output of 1000 lumens and beam distance of 738 feet (225 meters). Compatible with AER-03 pressure switch, this flashlight is a perfect for most law enforcement applications.


Max Lumens: 1000
Max Beam Distance: 738 feet (225 meters)
Max Runtime: 110 hours
Lighting Modes: 4 brightness levels, strobe and UV
Bulb Type: Cree XP-G2 and 365nm UV light
Size: Length: 5.6” (142.6mm) Diameter: 1.0” (25.4mm) Head: 1.57” (40mm)
Weight: 5.5 oz. (156.5g) excluding battery
Battery: One 18650 rechargeable Li-ion batteries or two 3V CR123A Lithium batteries
Included: Lanyard, holster, spare O-ring, body clip
Warranty: Limited Lifetime Guarantee from Fenix Lighting USA

More Information

Additional Features of the TK25 UV Tactical Flashlight

  • Cree XP-G2 with lifespan of 50,000 hours
  • Fitted with 365nm UV light
  • Rotary flashlight head for free switching between white and UV light
  • Compatible with AER-03 remote pressure switch
  • Digitally regulated output maintains constant brightness
  • Reverse polarity protection, to protect from improper battery insertion
  • Tactical tail switch for instant momentary on activation
  • Functional tail switch for output selection and instant strobe
  • Made of durable high-strength and oxidation-resistant aluminum
  • Premium type HAIII hard-anodized anti-abrasive finish
  • Toughened ultra-clear glass lens with an anti-reflective coating
Fenix TK25 UV Tactical Flashlight - DISCONTINUED specs chart

Dual Switches

The round switch is the tactical switch and the oval switch the functional switch.



Tap the tactical switch to momentarily turn on the light; the light will activate the last memorized output on White light mode, or last memorized output on UV light mode; release and the light will go out. 


Fully press the tactical switch to constantly turn on the light. Press again to turn off the light. 


With the light switched off, press the functional switch for instant strobe activation on White light mode, or the UV light mode.



With the light switched on on White mode - long press the functional switch to activate strobe. Click once again to return to previous output.


Output Selection

With the light on on White mode - single click the functional switch to cycle through Low→Med→High→Turbo.


Mode Switching

Rotate the light head to switch between white and UV light modes.


Intelligent Memory Circuit

The light memorizes the last selected brightness level on White and Red light modes. When turned on again the previously used brightness level will be recalled.


Low-voltage Warning

When the voltage level drops below the preset level, the flashlight is programmed to downshift to a lower brightness level until Low output is reached. When this happens in Low output mode, the flashlight blinks three times every five minutes to remind you to replace the battery. To ensure normal use, the flashlight will not turn off automatically and will work till the battery runs out completely. (Note: This only works with the white light mode, and light blinks until battery runs out.)


Overheat Protection

The light will accumulate a lot of heat when used on Turbo output level for extended periods. When the light reaches a temperature of 65°C or above, the light will automatically step down by a few lumens to reduce temperature. When the temperature is reduced, the output will gradually return to Turbo output level.


Battery Replacement

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


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 tail cap half a turn 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 lamp's performance as dirty contacts may cause the lamp to flicker, shine intermittently or even fail to illuminate for the following reasons:

A: The battery needs replacing. 

Solution: Replace battery (Ensure battery is inserted according to the manufacturer’s specifications). 


B: The threads, PCB board contact or other contacts are dirty. 

Solution: Clean the contact points with a cotton swab soaked in rubbing alcohol. 


If the above methods don't work, please contact your authorized distributor.



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.

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Customer Reviews

Based on 18 reviews
Reynaldo Lerma

The light is very bright and the uv light works great for finding scorpions at night!

tracy flynn

I have 7 Fenix Lights now, love them,
but no mention for the type of LED UV emitter on the FENIX TK25 UV. 1500mw times 2 or ????. are they over driven or not. when you're buying high-end LED flashlights you like tech specs

David Walker

Great product!

Stephen Morrison

Great flashlight. UV light is very strong and 365NM. If you need a great UV light, this is it.

Christine Torres

I love it, I use the UV light every time I leave my home of before I allow anyone in my home

Paul Oda

Great Product. I wish the web site was clear a charger for the battery needed to be purchased since the light didn't have a charge port.

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