Fenix TK25 R&B Blue/Red Light Flashlight

Max Lumens: 1000
Modes: 8
(20 customer reviews)

$120.00 $89.95


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The Fenix TK25 R&B version flashlight features multi-colored LEDs built in an innovative mode switching operation.  This patent pending operation allows for the user to have two separate operating products in one compact flashlight.  With a simple twist of the head, the user can switch from high performance white LED flashlight mode, to the red light flashlight and blue light flashlight to support your hunting or searching needs.

The high-performance flashlight features a white light that 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).  Simply twist the head of the TK25RB and your light is transformed into colored LED operation with the option of high and low red light, with a max of 150 lumens, and the blue light at 60 lumens. This Red & Blue version of the TK25 can be of great support in your hunting, work, or search functions. Purchase this product today and SEE WHAT MATTERS!

For commercial orders and large purchases, contact us at (888) 775-9996 x6, or
WARNING. Be aware of counterfeit Fenix merchandise in the U.S. marketplace.

Max Lumens: 1000
Modes: 8


fenix tk25rb flashlight specification chart

Flashlight Size:

Length: 5.61” (142.6mm)
Diameter: 1.0” (25.4mm)
Head: 1.57” (40mm)

Flashlight Weight:

5.52 oz. (156.5g) excluding battery


One 18650 rechargeable Li-ion batteries or two 3V CR123A Lithium batteries (not included)


Lanyard, holster, spare O-ring, body clip


Limited Lifetime Guarantee from Fenix Lighting US

Notice: The listed flashlight parameters (lab-tested by using one Fenix 3.6V/3500mAh Li-ion battery) may vary between flashlights, batteries and environments.

Additional Features of the TK25 R&B Blue/Red Light Flashlight

  • Uses Cree XP-G2 S3 and XP-E2 (red & blue) LED’s with a lifespan of 50,000 hours
  • Powered by one 18650 rechargeable Li-ion battery or two 3V CR123A Lithium batteries
  • Free switching between white, red and blue lights
  • Compatible with AER-03 remote pressure switch
  • Reverse polarity protection, to protect from improper battery insertion
  • Tactical tail switch for momentary activation
  • Functional tail switch for output selection and strobe activation
  • Made of durable aircraft-grade aluminum
  • Premium type III hard-anodized anti-abrasive finish
  • Toughened ultra-clear glass lens with an anti-reflective coating

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 last memorized output on White mode, or Red high on colored 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 mode, or to enter Red high on colored mode; release it and the light will go out.


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.

With the light on on colored mode – single click the functional switch to cycle through Red High→Red Low→Blue.

Mode Switching

Rotate the light head to switch between white and colored light.

Intelligent Memory Circuit

The light memorizes the last selected brightness level on White light mode. 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. (White light flashes on white light and Red flashes on colored light.)

Intelligent 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 batteries need replacing.
    Solution: Replace batteries (Ensure batteries are 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.

20 reviews for Fenix TK25 R&B Blue/Red Light Flashlight

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  1. Anonymous (verified owner)

    Excellent flashlight. Easier to use than the instructions were to read. Nice glass lens. Correct red + blue wavelengths. Rotating head great feature. Only white/red/blue flashlight I could find since Pelican quit making theirs. Very good customer service with nice help understanding features before buying. Fast shipping too. And cheaper than Amazon !!

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  2. ilia (verified owner)

    Absolutely love it

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  3. Michael Marvosh (verified owner)

    Outstanding I like the different lights and at nite they really look good and THANKS

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  4. James Thyden (verified owner)

    Had it for a month and so far so good. What I like best is that there are two red light settings one is REALLY bright. This is exactly what I need for the outdoor drives on my upcoming safari.

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  5. John (verified owner)

    Excellent light but uses expensive batteries. Definitely worth upgrade to rechargeable. Big advantage to have white and red light for hunting with option to use disposable batteries if tracking takes longer then expected.

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  6. Kristopher N. (verified owner)

    Super bright and multiple uses with different colors

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  7. Eric (verified owner)

    Nice size, hefty enough but portable. VERY bright on turbo mode. Multiple colors very nice. As others have stated it would be nice on color mode to keep the setting when turned on and off, but this is a minor issue. Rechargeable lithium batteries are great.

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  8. Leslie R. (verified owner)

    I got the best flashlight in the shop .

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  9. Ed (verified owner)

    Great product, highly recommend.

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  10. Anonymous (verified owner)

    Tactical, small enough to carry, bright enough to spotlight woods, rechargeable batteries. 100% satisfied

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  11. Jim M. (verified owner)

    I liked to Lumens power of this light and the ease to change between lighting modes

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  12. John B. (verified owner)

    Well made. Sturdy. Bright. Love it. Wish it was about $20.00 cheaper, but it is a great light for work!!! Only reason I didn’t rate it a five star purchase is price.

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  13. Stacey Banks (verified owner)

    Freaking awesome

    1 out of 1 people found this helpful. Was this review helpful to you?
  14. Douglas Meyers (verified owner)

    The flashlight is everything they said it was and I hoped it would be. Very good quality

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  15. David S. (verified owner)

    Very bright, well built flashlight

    1 out of 1 people found this helpful. Was this review helpful to you?
  16. Nehemiah (verified owner)

    I have an older Fenix that says it is 320 Lumens and this new one doesn’t seem to be any brighter. Also the beam is not as focused as I had hope. All in all though I love the light and all the features. Would recommend to anyone looking for a good quality light.

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  17. Dustin (verified owner)


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  18. Derek K. (verified owner)

    I use this light primarily for hunting. I bought it as a blood trailing light. It is by far the brightest LED light I have ever owned. I also used it to shine fields in the dark and the distance is incredible. Perfect size for stuffing in a hunting pack. Very easy to click on and off, and to switch the red/blue lighting. Great light, seems very well made, and look forward to using it for many seasons.

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  19. Bert Hughes (verified owner)

    Great flashlight! Bought it for hunting predators and have taken it camping. The different modes and brightness levels are a great feature. Can’t wait to spot coyotes with it!

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  20. Richard A. (verified owner)

    I’m a boat captain and I like that I don’t have to change linses to use a red light so I can keep my night vision. I would like one a little more pocket size and specific made for marine purposes. Other then that it’s perfect.

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  21. Kevin Fineberg (verified owner)

    Very good light, Great for Law Enforcement, Tactical use as well as LE Training in all low light conditions. I have never been disappointed with a Fenix Light….. Would highly recommend any of these lights to Law Enforcement or just the Tactical Gurus……..

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  22. Daniel K Sparkman

    Very versatile light with multipurpose applications. Hunters will find it useful with the red setting for a “kill light”, the blue setting for map reading and movement at night, and the white setting for going in and setting up before dawn or withdrawing after dark. The addition of the 3500U battery adds the versatility of solar charging your light’s battery without extra hardware to keep your pack light. Very solid product and we’ll worth the money.

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