Fenix TK28R – 6500 Lumen Flat-Body Tactical Flashlight
The TK28R is not shaped like the usual Fenix tube light. It is a flat aluminum body about 1.26" thick that carries two 18650 cells side by side, which is why it sits in the hand more like a radio than a baton. Up front, a Luminus SFT70 spot LED and an SST70 flood LED fire together for 6500 lumens and about 1,312 feet (400 m) of throw, so you get a long center beam and a wide spill at the same time.
The tail is where it earns the tactical label. Two tail switches give instant Turbo and instant Strobe, and a toggle switch flips the light between white and a strong red mode driven by two OSRAM red LEDs. Red is useful for keeping night vision, reading a map, or signaling without washing out a whole field. Charging is through a covered USB-C port and takes under 1.5 hours with a 2 amp or better charger.
Most red flashlights for night vision are small and dim. The TK28R pairs a usable red channel with a full-power white beam, so one light covers both jobs.
The trade-off is size and weight: at 12.64 oz with batteries it is a duty or truck light, not a pocket light. A titanium-plated steel clip is included for a vest or belt.
Key Features
- 6500 lumens from SFT70 spot + SST70 flood LEDs, 1,312 ft (400 m) beam
- Dedicated red light with three levels plus red flash
- Dual tail switches for instant Turbo and Strobe; toggle for white/red
- Two included ARB-L18-4000 18650 batteries; break-action loader for quick swaps
- USB-C charging under 1.5 hours with sliding port cover; IP68 rated
- Up to 102 hours runtime on the lowest mode
Specifications
| Max output |
6500 lumens |
| Beam distance |
1,312 ft (400 m) |
| Max runtime |
102 hours |
| Modes |
5 white, 3 red, red flash, strobe |
| LEDs |
Luminus SFT70 + SST70 (white), 2 x OSRAM red |
| Battery |
2 x 18650 (ARB-L18-4000 included) |
| Charging |
USB-C, under 1.5 hours |
| Waterproof |
IP68 |
| Length |
5.82" (147.8 mm) |
| Height x width |
2.01" x 1.26" |
| Weight |
12.64 oz with batteries |
| Body |
Hard-anodized aluminum |
| In the box |
2 x ARB-L18-4000, USB-C cable, clip, lanyard, spare O-ring |
| Warranty |
Limited lifetime from Fenix Lighting USA |
Frequently Asked Questions
What battery does the Fenix TK28R use?
The Fenix TK28R runs on two 18650 lithium-ion cells, and two Fenix ARB-L18-4000 (4000 mAh) batteries come in the box. A break-action loader opens the body so you can swap both cells quickly.
How bright is the Fenix TK28R?
The Fenix TK28R peaks at 6500 lumens with both the spot and flood LEDs running, and the beam reaches about 1,312 feet (400 m). Lower white levels and three red levels are there when you do not need full output.
Why does the Fenix TK28R have a red light?
The Fenix TK28R's red light lets you see without ruining your night vision, which is why hunters, soldiers and police carry red flashlights. Two OSRAM red LEDs sit on their own channel, selected with the tail toggle switch, with three brightness levels plus a red flash for signaling.
Is the Fenix TK28R waterproof?
The Fenix TK28R is IP68 rated for dust and water, and the USB-C port has a sliding cover.
How is the Fenix TK28R different from the Fenix TK35R?
The Fenix TK28R uses a flat body with two 18650 cells and a spot-plus-flood pair of LEDs, while the TK35R is a round 21700 tactical light. Pick the TK28R if you want the wide-and-far beam and the stronger red light; pick the TK35R if you want a slimmer round body.
Is the Fenix TK28R good for hunting and police work?
Yes. The Fenix TK28R was built for duty use: instant Turbo and Strobe from the tail, a 400 m white beam for spotting, and red light for tracking or moving at night without giving away your position. Its flat body rides well on a duty belt or in a vest pocket.
Where can I buy the Fenix TK28R?
You can buy the Fenix TK28R from Going Gear, an authorized Fenix dealer. Every unit is genuine and covered by Fenix Lighting USA's warranty.
