Fenix TK40 High Performance Cree LED Flashlight

The Fenix TK40 High Performance Cree LED Flashlight is a relatively compact light that puts out a tremendous amount of brightness for its size.

The hard aluminum body is corrosion resistant and can withstand a significant amount of abuse.  There are multiple output settings from a low of 13 lumens to a high of 630 lumens.

The Fenix TK40 High Performance Cree LED Flashlight runs on 8 AA batteries and is capable of running on just 4 AA batteries but puts out enough light to be comparable to a 10 W search and rescue HID (high intensity discharge) light.

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tk40 fenix flashlight

Product Features and Specifications

  • Product Dimensions: 8.2 x 2.4 x 2.4 inches
  • Product Weight: 10.1 ounces
  • Shipping Weight: 1.1 pounds
  • Uses eight 1.5V AA batteries (not included) and maintains excellent constant brightness with two output modes
  • 8 output types,including Turbo output which can be used whenever high-powered light is needed, exploration, search & rescue, long-range ID
  • Cree MC-E LED 2 modes with 8 types of output -4 types of primary output: Turbo (630 Lumens, 2Hrs), Low (13 Lumens, 150Hrs), Mid (93 Lumens, 20Hrs), High (277 Lumens, 6.8Hrs) -4 types of strobe: Strobe, Slow flash, SOS, Fast flash

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The Reviews

Fenix TK40 High Performance Cree LED Flashlight

The reviews for the Fenix TK40 High Performance Cree LED Flashlight are quite good.  Our research showed that 93% of the reviewers gave this product either a 4 or 5 star rating out of a possible 5 stars and there was no one that gave it less than a 3 star rating.

The only 3 star ratings came from people that had some type of issue like a defective model that had to be returned for replacement.

The vast majority of the reviews were quite good and there were a lot of things about the Fenix TK40 that people liked.

One of the things that most of the reviewers for this product were looking for was a flashlight that ran on either AA or AAA batteries rather than lithium ion or some other type of battery.

The Fenix TK40 does run on 8 AA batteries and it can run on just 4 AA batteries if that’s all you happen to have.  Many reviewers agree that this is the brightest light they’ve ever seen for a flashlight that runs on AA batteries.

check markMany people were impressed with the rugged, durable build of this flashlight.  It has a hard aluminum body that can withstand just about any kind of abuse.

The flashlight is also waterproof and was tested by being submerged in 2 meters of water for 30 minutes.  You may not want to take it scuba diving with you but you don’t have to worry about using it in the rain or even dropping it in the water.

Many of the reviews we found online were quite detailed and people weighed the pros and cons of this flashlight.

A few things people didn’t like about the Fenix TK40 were the fact that it is a bit heavy (especially when the batteries are in), cycling through the different modes is a little confusing and takes some getting used to, and batteries are not included.

Overall these are minor drawbacks and as previously stated the vast majority of the people that took the time to review the Fenix TK40 High Performance Cree LED Flashlight were very pleased with their purchase.  It is a very bright flashlight that uses a digital regulated output in order to maintain stable brightness levels even with low batteries.

It is a good, reliable, and energy efficient flashlight that is bright enough for just about anybody.

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