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  • Fenix TK45 High Performance Flashlight
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Fenix TK45 High Performance Flashlight

List Price: $166.00
Price: $117.11 & FREE Shipping
You Save: $48.89 (29%)
In stock.
Usually ships within 3 to 4 days.
Ships from and sold by BlackOut Supply.
  • Powerful digitally regulated, three-LED flashlight with four steady lighting modes and multiple flashing settings
  • 760-lumen output on turbo down to eight-lumen output on low; 200-meter beam; runtimes from two to 232 hours
  • Constructed of aircraft-grade aluminum with type III hard-anodized anti-abrasive finish and a toughened ultra-clear glass lenses
  • Waterproof to a IPX-8 standard; can stand securely on flat surface to serve as candle
  • Runs on eight standard AA batteries; comes with lanyard; limited lifetime repair warranty
23 new from $117.11

Frequently Bought Together

Fenix TK45 High Performance Flashlight + eneloop AA 1800 cycle,  Ni-MH Pre-Charged Rechargeable Batteries, 8 Pack (discontinued by manufacturer)
Price for both: $143.83

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Sold By BlackOut SupplyAmazon.comTrustEHarborJohnArm Store
Batteries Required Y Y Y Y
Power Source Battery-Powered Battery-Powered Battery-Powered Battery-Powered
Weight 0.71 pounds 0.7 pounds 0.13 pounds 0.7 pounds
Length 7.9 inches 9 inches 3.7 inches 8.39 inches
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Product Description


Built to deliver an exceptionally bright beam of 760 lumens, the TK45 features a three-LED design to cast a wide swath of light. Powered by eight, easy to find, standard AA batteries, the TK45 offers four running modes that stretch the operational times from two to 232 hours. With four steady light beams ranging from 760 lumens on turbo mode to eight lumens on low mode, the TK45 has the power you need for just about any situation. Meanwhile, flashing mode provides strobe lighting, SOS signals, and a warning flash. Designed for ease of use, the TK45 has a sidewinder dual switch system and an intelligent memory function that allows the light to recall its last mode. Constructed with durable aircraft-grade aluminum that is coated with a premium type III hard-anodized, anti-abrasive finish and waterproof to IPX-8 standard, the TK45 can stand up to virtually any conditions. Thanks to digitally regulated circuitry as well as toughened ultra-clear glass lenses with an anti-reflective coatings, the TK45 provides a consistent and steady light. The TK45 comes with a lanyard and carries a limited lifetime repair warranty from Fenix.

The TK45 is powered with eight easy to find standard AA batteries.
Key Features:
  • Digitally regulated output maintains constant brightness
  • Intelligent memory function
  • Outstanding heat sinking performance offers long working time in Turbo mode
  • Made of durable aircraft-grade aluminum
  • Premium Type III hard-anodized anti-abrasive finish
  • Toughened ultra-clear glass lenses with anti-reflective coating
  • Sidewinder dual switch system
  • Capable of standing up securely on a flat surface to serve as a candle


  • Light source: three Cree XP-G LEDs (R5)
  • LED lifespan: 50,000 hours
  • Modes: Turbo, High, Mid, Low, Flashing
  • Turbo mode: 760 lumens, 2-hour runtime
  • High mode: 312 lumens 6.5-hour runtime
  • Mid mode: 95 lumens, 221-hour runtime
  • Low mode: 8 lumens, 232-hour runtime
  • Flashing modes: Strobe, SOS, Warning Flash
  • Maximum beam length: 200 meters
  • Intensity: 2158 candela
  • Working voltage: 3 to 12 volts
  • Dimensions: 7.9 by 1.5 by 2.2 inches / 202 by 39.2 by 56 millimeters (length x diameter x head diameter)
  • Weight without batteries: 324 grams
  • Waterproof rating: IPX-8, underwater 2 meters
  • Battery: eight 1.5V AA (Ni-MH, Alkaline) batteries
  • Included accessories: lanyard

What's in the Box?
TK45 Flashlight, lanyard

Product Description

The Fenix TK45 features three lighting heads with a unique appearance that allows for increased heat sinc and higher performance. It throws max 760 lumens output by utilizing three heads of Cree XP-5 R5 LED, which is much brighter than a 10W HID light, and comparable to a car headlight. TK45 is powered by 8 AA batteries to offer four levels of brightness and three flashing modes, with max 232 hours runtime and easy operation of the sidewinder dual switch system. All of this remarkable output is housed in a water resistant, tank-like body, that can be easily carried by hand.

Product Details

Customer Questions & Answers

Customer Reviews

Best flashlight I have ever owned.
Robert Cavazos
The lowest light setting uses just one light and is usable for reading maps or for walking around the house without disturbing anyone.
PROS: very sturdy, beautiful look, quality craftsmanship, amazing light output.

Most Helpful Customer Reviews

62 of 63 people found the following review helpful By David Munson on November 27, 2010
Verified Purchase
April 2012 Update. Still going strong. Like new.


Very nice flashlight. I especially like how the controls are laid out. Right button controls on-off and flash mode. Left button controls intensity. The flashlight remembers the last intensity. Press twice fast on the right button to enter flash mode and control the flash mode with the left button. It takes no time to get use to the feel of the controls and you won't make mistakes in the dark. It is -very- intuitive.

Very powerful beam. More than enough to light up whatever you point at. The flashlight works well (on low mode) to light up the stove interior but not blind me when I worked on it and on a higher mode to light up my orchard or woods on a moonless, cloudy night. Point it at the tree line at pitch dark and you will see everything at a distance. Sweep it at the huge oak tree and nothing in the tree will remain hidden. The light cuts through driving rain and a halo surrounds the beam of light. Very cool. You can actually see the beam of light near the flashlight. (Yes, when a November rain storm came through I did check how it works.) I've seen complaints that the beam is not a "thrower". My take is that everything within 300 feet is going to be lit up. Everything within 600 feet illuminated. I use this as a tool; not some tactical toy. Most off, at night or in a storm, I'm concerned with things out to 100 feet at dark, not a mile away. For use in the real world, a wide beam allows you to have more things illuminated with a wider beam. That is the trail in front of you, along the sides of the trail and in the far distance so you can choose your path.

On low (8 lumens) mode there is just enough light to light the path right in front of you (but not further).
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37 of 38 people found the following review helpful By Todd Shipp on August 22, 2011
Verified Purchase
****See update below -

Normally, I'd say buying from Amazon is a good deal and would save you money. But in the case of the Fenix TK45 light, buying from Amazon is a mistake. Here is why.

After owning the device for 8 months, it developed a problem which the manufacturer says is covered under warranty. Yes, I realize I said 8 months. However, the device has a 24 month warranty (30 months if you register).

The problem comes when you need warranty service...and it is not totally Amazon's fault.

The manufacturer tells you that warranty service is handled by the place you buy it. However, Amazon does not provide warranty service once you are outside the standard order window.

Meaning, you could either ship it to China yourself (good luck), or you should have bought from a different reseller.

I am not placing the whole blame on Amazon. It is not their fault the light developed a defect. But if you want this light, or any Fenix light, buy from a different reseller, whether on Amazon's site or not, so you can get a decent warranty.

I regret doing that now.

**Updated 8/31/11 - To my pleasant surprise, I was contacted by a representative of Fenix offering a RMA for me to send the unit in for repair even though I did not buy from him. I shipped it yesterday with an expected return of about 10 business days. Once I hear back and if it comes back working, I will update again and increase the star rating.

**Updated 9/3/11 - Fenix came through! Today, I received, not my repaired TK45, but a new one in the box! I am upping this to 4 stars. If Amazon had been the one to make this all happen, it would be 5. So Fenix gets 5, Amazon 4.
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32 of 33 people found the following review helpful By Murtaza on January 24, 2011
Verified Purchase
My first experience with a high performance flashlight was an Inova T4 (max 110 lumens or so) that I bought from a store while on a visit to the U.S. back in 2006. I used that light uptil now and am very much satisfied with it.

I stumbled across the Fenix TK45 while checking amazon.com and was quite shocked to see the maximum output rated at 760 lumens! (and I thought my 110 lumens T4 was bright!). I was a bit nervous about going for "Made in China" product! (well go to admitt I have a unwavering bias towards Made in U.S.A. products, thanks to my 4 years of under-grad college life in the U.S.). Any way TK45 was reviewed quite favorably on both amazon.com as well as other internet forums. So I took the plunge with it, neglecting models from Surefire and EagleTac.

I have had the light for two weeks. I primarily use it as personal companion in underground work (I run 4 different subterranean mining operations in the Salt Range region of Pakistan). these are underground rock salt mines (with mine heights of over 125 feet) and underground coal mines (with mine height of 7 feet). So far the TK45 has performed outstanding in these areas. I will make an observation that TK45 is ideally suited for tight, constrained or defined widths areas like tunnels, underground mines, and perhaps not that well suited for longer range applications. Now don't get me wrong, TK45 still has an enormous throw but what I mean to point out is that the beam is quite spread out and not tightly focused. So in any place with a defined width, the illumination from TK45 in front will be 360 degrees of brightness.
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