Fenix TK15R EDC Torch review: Handheld powerhouse with inventive sensor-controlled brightness

My pursuit of another EDC torch with a killer feature stops right here with the Fenix TK15R, a small-form 3,200-Lumen flashlight with a built-in adaptive distance sensor that automatically dims or brightens the beam depending on the torch's proximity to a subject.

I've been putting this spiffing pocket rocket through its paces and honestly can't find anything unsavoury to say about it. It just works. Here we go.

Fenix TK15R review

Price and availability

The Fenix TK15R costs around £129.95 in the UK and is available direct from Fenixlight or Amazon (£116), Flashaholics (£129.95) and Knives and Tools, where it retails for a knockdown £102.

In the USA, the TK15R retails for approximately $119.95 and is available through Fenix Lighting or Amazon.

Fenix TK15R at a glance

• Dimensions: L 14.9cm; W (lens) 3.4cm; W (barrel) 2.5cm
• Weight: 205.5g
• LED Type: Luminus SFT70
• Luminosity: Max 3,200 lumens; Min 30 lumens
• Low mode: 30 lumens (68 hrs)
• Med mode: 350 lumens (8hrs 20mins)
• High mode: 1,000 lumens (3hrs 30mins)
• Turbo mode: 3,200 lumens (2hrs 30mins)
• Iris-X mode: Auto 30-2,000 lumens
• Special modes: Alternating strobe
• Lighting Range: Max 490m
• Construction: Aircraft-grade aluminium
• Waterproofing: IP68, 2m depth
• Rechargeable battery: 5,000mAh

Design and features

When it comes to choosing an EDC (Everyday Carry) torch, I personally look for two specific features: the highest luminosity possible for the price and size of the unit; and a lens barrel adjuster to easily switch from a wide, diffuse floodlight to a sharp, narrowly focused beam.

At 3,200 lumens on full blast, the Fenix TK15R I'm reviewing here provides more than enough midnight clout, though its lens sadly doesn't come with an adjustable focal length. However, what it has instead is one of the most innovative and useful features I've ever come across in a torch – Adaptive Light Control.

Take the common scenario where you switch on a torch to look at a map or inside a car's engine bay and both the subject matter and your eyes are completely dazzled by over 1,000 lumens of bright white light because the last time you used the torch it was on full beam. The opposite is true when you urgently need to illuminate something further afield but your torch is on its very lowest 30-lumen setting.

Fenix has solved this conundrum by equipping the TK15R with a sensor that adjusts the strength of the beam depending on the proximity of the subject you're looking at. Fenix calls it IRIS X and I think it's the best thing in torches since the barrel focus adjuster.

Instead of repeatedly cycling through loads of brightness settings – sometimes in a hurry – IRIS X adjusts the torch's output automatically, providing useful close-up illumination without dazzling the user with excessive reflected light. And when you need to quickly illuminate a wider area, it automatically switches to a near full-power beam.

While this innovation is particularly relevant to police, security personnel and anyone who needs to move quickly between searching and close-up tasks, it's also a godsend for the rest of us. Even the act of just walking around in the dead of night is vastly improved because the torch throws a gentle beam just ahead of your footfall and when you need to have a quick glance further ahead, it immediately illuminates the whole area. A game changer, in my opinion.

Cast out of reassuringly robust aircraft-grade A6061 T6 aluminium and coated in a hardy anodised midnight black finish, the TK15R weighs in at 205.5 grams and measures a pocket-friendly 14.9cm in length, 3.4cm in width at the head and 2.5cm at the barrel. A titanium body clip, robust nylon belt pouch and thick wrist lanyard round off an impressive package.

Let's check out the specs. Starting in the engine room, you get a Luminus SFT70 LED, delivering up to 3,200 lumens and a maximum beam distance of around 490 metres. In the pantheon of torch light, that's a very impressive throw indeed.

There's no mention of this model's beam angle but, despite illuminating a huge area when used in an open space like a field, it behaves much more like a spot than a floodlight when used indoors or when shone at a wall. Its power, meanwhile, comes from Fenix’s own chunky ARB-L21-5000 V2 rechargeable battery which offers a substantial 5,000mAh capacity.

The Fenix TK15R comes with four conventional brightness settings: 30 lumens on Low, 350L on Medium, 1,000L on High and a substantial 3,200L on Turbo. Fenix's claimed runtimes range from 68 hours on Low to eight hours and 20 minutes on Medium, three hours and 30 minutes on High and two hours and 30 minutes on Turbo.

The all-important IRIS-X adaptive lighting system, meanwhile, automatically adjusts the output between 30 and 2,000 lumens, depending on the brightness scale selected (there are two).

For example, the default full-brightness scale is roughly 100 lumens to 2,000 lumens but when switched to the lower scale by tapping the barrel button, it drops to around 50 to 800 lumens. I'm guessing here because I can't find any concrete figures, but the two scales are dramatically different. In fact I find the lower scale more practical for most scenarios, including walking and map reading, when the lowest illumination figure drops to around 30 lumens.

You can turn this torch on in two ways and both methods are refreshingly practical. On the rear there's a rubberised tail switch and on the lens barrel, a three-way toggle that switches between the adaptive IRIS X setting on the left, off in the middle and manual 'Duty' mode on the right.

If you engage the rear button while the front toggle is in the off position, the torch won't turn on. Instead, a battery level indicator on the toggle LED will stay constantly lit to serve as a locator light so you can find the torch in total darkness. In this configuration, you turn the torch on by flicking the front toggle switch to either IRIS X or Duty (manual) mode. The other 'on' method is to leave the torch's front toggle switch in either IRIS X or Duty mode and use the rear button to turn the torch on.

I agree that this system is a little confusing at first but I can see a valid reason here because it allows for two types of user: security guards and police who tend to hold their torches at shoulder height in a fist grip and therefore prefer a rear thumb switch; and the rest of us who grip the torch with our arm hanging down.

I should add that, if you have the rear switch turned 'on' but use the barrel-mounted toggle switch to put it into 'off' mode, the battery level indicator-cum-locator LED will remain constantly lit and this will eventually flatten the battery over an admittedly long period time. Hence, it's good practice to always turn off the rear switch when the torch is in storage.

Let's check out the various beam settings. When in Duty mode the TK15R's barrel-mounted push button cycles through the four brightness settings – Low, Medium, High and Turbo – with each tap of the centre button. And when in IRIS X mode, you get two brightness range options as mentioned above.

Also, if you hold the button in – in either IRIS X or manual mode – the torch instantly emits a strobe that alternates between two speeds of pulsating full-beam light for maximum disorientation when engaging with an unwelcome intruder. Aside from strobe, the torch will always default to the last brightness setting you had it in. The TK15R charges via USB-C and has a claimed 90-minute charging time using an optional USB power adaptor.

Performance

I normally flit from one beam strength to the next when using a torch outdoors but this model changes all that. I've been using the TK15R to get around our very dark village and the Adaptive Light Control system is simply matchless because it dims the light at my feet but increases the luminosity the moment I lift the torch up to see further ahead. I can also see it being a perfect EDC torch for camping and car use, mostly because the IRIS X technology keeps dazzle to a bare minimum as long as you turn it on in close proximity to a subject.

For my tests, I took the TK15R up to a local church and field and flicked through the various settings. While I dearly love torches that have the ability to change the beam from a wide floodlight to a tight, long-range spotlight by pushing and pulling on the barrel, I think the TK15R's beam slots nicely in the middle, with amazing peripheral illumination and the ability to really highlight a subject from afar when it's in its highest 3,200-lumen setting. In fact, for its size, I think this is possibly the brightest torch I've ever used.

Granted, the on/off process takes a while to get the hang of, but in the main, I've found this torch intuitive to use – I especially rate the toggle system on the barrel, which makes it super easy to switch from the 'off' position to the IRIS X and Duty modes, and select one's preferred brightness with a single tap of a button. It's also great to see a torch that makes it easy to access the strobe feature in a thrice by simply holding the brightness button, no matter whether it's in IRIS X or Duty mode.

Verdict

The Fenix TK15R is an extremely capable torch that’s just as useful around the house as it is in the great outdoors. Its ultra-bright 3,200-lumen output and 490-metre beam offer impressive reach, while the exceedingly clever IRIS X system automatically adjusts brightness to suit the situation.

Whether you’re checking the car after dark, camping in the wilderness or searching for something in the shed, this is a powerful and very versatile companion that’s built like a mini tank. And it's much cheaper than you might expect, too.