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Fenix TK35R 5800 Lumen Multi-Mode Tactical Flashlight with UV Light
Quick answer: the Fenix TK35R is a 5800-lumen, 610m tactical flashlight with a built-in 365nm UV LED, silent dual tail switches, and a Flexisensa mode toggle, running on two included 4000mAh 18650 batteries with USB-C charging and an IP68 rating.
Fenix TK35R Multi-Mode Tactical Flashlight – 5800 Lumens with 365nm UV
The Fenix TK35R packs four Luminus SFT25R LEDs for a 5800-lumen Instant Turbo that reaches 2001 ft (610 m), plus a dedicated 365 nm UV LED for credential checks and tracing. A mechanical Flexisensa toggle flips between General, Lockout, and UV modes, and two silent tail switches give you momentary light, Instant Turbo, and Instant Strobe without looking.
Features
- 5800-lumen Instant Turbo – 610 m (2001 ft) throw, 93,000 cd
- 365 nm UV, 2 levels – UV High (3 W) for spotting stains and fluids from a distance, UV Low (1.5 W) for close inspection of IDs, currency, and security marks
- Silent dual tactical tail switches – tap for momentary, full press to click on, Instant Turbo and Instant Strobe
- Flexisensa toggle switch – General, Lockout, or UV mode in one turn; mechanical, no magnets
- 5 white levels + Strobe – Eco, Low, Med, High, Turbo, plus a 3000-lumen Strobe; remembers your last level
- Battery level indicator in the functional switch, which also flashes red/green while UV is on so it isn't left running
- Flat, anti-slip body – IP68 waterproof, 1 m impact resistance, overheat protection and low-voltage warning
Battery & Charging
- Two included Fenix ARB-L18-4000 18650 batteries (4000mAh)
- USB-C port in the tail with a sliding cover: about 2 hours with a 9 V/3 A adapter, about 4 hours at 5 V/2.4 A
- Up to 105 hours on Eco
- Fit check: 18650 only. Fenix says not to use 16340 or 21700 cells and not to mix batteries; the battery-level readout is designed for Fenix ARB-L18 cells.
Specifications
| Specification | Details |
|---|---|
| LED | 4 × Luminus SFT25R (white) + 1 × Luminus SST08 (365 nm UV) |
| Maximum Brightness | 5800 lumens |
| Peak Beam Distance | 2001 ft (610 m) |
| Peak Beam Intensity | 93,000 cd |
| Color Temperature | About 6500–7500K |
| UV | 365 nm, two levels (3 W / 1.5 W drive power) |
| Battery | 2 × 18650 (Fenix ARB-L18-4000, 4000mAh, included) |
| Charging | USB-C with sliding cover; ~2 h at 9 V/3 A, ~4 h at 5 V/2.4 A |
| Max Runtime | 105 hours |
| Lighting Modes | 8 |
| IP Rating | IP68 |
| Impact Resistance | 1 meter |
| Dimensions | 6.06" × 1.69" (154 × 43 mm) |
| Weight | 12.06 oz (342 g) with batteries |
| Lens | Glass |
| Body | High-strength aluminum alloy |
Brightness & Runtime
| Mode | Output | Runtime | Distance |
|---|---|---|---|
| Turbo | 5800 lumens | 3 h* | 610 m |
| High | 2000 lumens | 3 h 15 min | 370 m |
| Med | 800 lumens | 4 h | 230 m |
| Low | 350 lumens | 9 h 20 min | 150 m |
| Eco | 30 lumens | 105 h | 30 m |
| Strobe | 3000 lumens | – | – |
| UV High | 3 W | 7 h 30 min | – |
| UV Low | 1.5 W | 14 h 30 min | – |
ANSI/PLATO FL1 figures from Fenix with two ARB-L18-4000 batteries. *Turbo runtime includes automatic step-down for heat.
What's Included
- Fenix TK35R flashlight
- 2 × Fenix ARB-L18-4000 18650 batteries
- USB-C charging cable
- Holster
- Lanyard
- Spare O-ring
- User manual and warranty card
UV safety: UV light can harm eyes and skin, and it is mostly invisible, so never look into the UV beam or point it at people.
Good to know: Fenix ships the TK35R with one of two laser-engraving designs; there is no functional difference.
Great for: law enforcement and security, patrol, search and rescue, hunting, and outdoor or inspection work.
Specs
| Max Output | 5800 lm |
|---|---|
| Beam Distance | 610 m |
| Peak Intensity | 93000 cd |
| Color Temp | 6500–7500 K |
| LED | 4 × Luminus SFT25R (white) + 1 × Luminus SST08 (UV) |
| Peak Wavelength | 365 nm |
| UV Power | 3 W High / 1.5 W Low (Fenix drive-power rating, not radiant flux) |
| Battery Format | 2 × 18650 (Fenix ARB-L18-4000, 4000mAh) |
| Battery Included | Yes (2) |
| Charging Port | USB-C in tail, sliding cover; ~2 h at 9 V/3 A, ~4 h at 5 V/2.4 A |
| IP Rating | IP68 |
| Impact Resistance | 1 m |
| Length | 154 mm |
| Body Diameter | 43 mm |
| Weight (with cell) | 342 g |
| Material | High-strength aluminum alloy |
| Switch | Silent dual tactical tail switches + Flexisensa General/Lockout/UV toggle |
| Modes | 8 (Eco, Low, Med, High, Turbo, Strobe, UV High, UV Low) |
| Max Runtime | 105 h (Eco) |
| Lens | Glass |
| Mode Memory | Yes (except Strobe) |
| Special Features | Instant Turbo; Instant Strobe; battery level indicator (flashes red/green while UV is on); overheat protection; low-voltage warning; holster included |
Customer Reviews
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