Fenix TK15R – 3200 Lumen Rechargeable Tactical Flashlight, IRIS X Auto Brightness, SFT70 LED, 21700
Fenix TK15R – 3200 Lumen Rechargeable Tactical Flashlight, IRIS X Auto Brightness, SFT70 LED, 21700
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Fenix TK15R – 3200 Lumen Rechargeable Tactical Flashlight
The TK15R has a three-position toggle switch that picks how the light behaves before you ever press the tail. Duty mode gives you four fixed brightness levels plus instant Strobe. Lockout keeps it off in a bag or holster. IRIS X mode uses a light sensor built into the reflector, lined up with the beam, to read the light and adjust brightness automatically instead of staying at one fixed level.
A Luminus SFT70 LED behind a glass lens puts out 3200 lumens and reaches 1,608 ft (490 m), in a body that is 5.87" long. The tail switch gives momentary and constant on, and the side switch changes levels and gets you to Strobe.
It comes with an ARB-L21-5000 V2.0 21700 battery and charges in the light through a built-in USB-C port with fast-charging support, with a battery level indicator. The A6061-T6 aluminum body is IP68 rated and waterproof to 2 meters. A holster and lanyard are included.
Key Features
- 3200 lumens, 1,608 ft (490 m) beam from a Luminus SFT70 LED
- IRIS X mode adjusts brightness automatically with a reflector-mounted light sensor
- Toggle switch selects Duty mode, Lockout or IRIS X; Duty mode has instant Strobe
- ARB-L21-5000 V2.0 21700 included; built-in USB-C fast charging
- A6061-T6 aluminum; IP68, waterproof to 2 m; holster included
Specifications
| Max output | 3200 lumens |
| Beam distance | 1,608 ft (490 m) |
| Max runtime | 68 h 20 min |
| Modes | 4 Duty levels, 2 IRIS X levels, strobe |
| LED | Luminus SFT70 (~7200K) |
| Lens | Glass |
| Battery | 1 x 21700 (ARB-L21-5000 V2.0 included) |
| Charging | USB-C, fast charging |
| Waterproof | IP68, 2 m submersible |
| Length | 5.87" (149 mm) |
| Head / body | 1.34" / 1.00" |
| Weight | 7.25 oz (205.5 g) with battery |
| In the box | ARB-L21-5000 V2.0, USB-A to USB-C cable, holster, lanyard, spare O-ring |
| Warranty | Limited lifetime from Fenix Lighting USA |
Frequently Asked Questions
What is IRIS X mode on the Fenix TK15R?
IRIS X is an automatic brightness mode on the Fenix TK15R. A light sensor in the reflector, aligned with the beam, reads the light and the flashlight adjusts its output automatically.
How many lumens is the Fenix TK15R?
The Fenix TK15R reaches 3200 lumens with a 1,608 ft (490 m) beam. Duty mode adds three lower levels, so you can use less light when 3200 lumens is more than you need.
Is the Fenix TK15R a rechargeable tactical flashlight?
Yes. The Fenix TK15R charges its included ARB-L21-5000 V2.0 21700 battery through a built-in USB-C port with fast-charging support, and it has a tactical tail switch with instant Strobe in Duty mode.
Does the Fenix TK15R have a lockout?
Yes. The Fenix TK15R toggle switch has a Lockout position, alongside Duty and IRIS X, to prevent accidental activation.
Is the Fenix TK15R waterproof?
Yes. The Fenix TK15R is IP68 rated and waterproof underwater to 2 meters.
Where can I buy the Fenix TK15R?
Going Gear is an authorized Fenix dealer and stocks the Fenix TK15R with Fenix Lighting USA's warranty.

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