Fenix TK20R UE flashlight review

Luminus SFT70 LED
2800 lm output
53880 cd intensity
1 x 21700 Li-Ion battery

The Fenix TK20R UE flashlight was released in 2023. It uses Luminus SFT70 LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2800 lm output, 53880 cd intensity, and a beam distance of 464 m.

Curious if the TK20R UE shines bright? You'll find out soon!

Table of Contents

  • Fenix TK20R UE specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
    • Links
  • Conclusion, pros and cons
  • Photos
  • Comparisons

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage.

Fenix TK20R UE / TK20RUE

The TK20R UE flashlight offers a versatile lighting solution. This light has 4 modes of lighting. The TK20R UE flashlight recalls the last used mode. You can use the strobe function as a self-defense tool. The flashlight uses rechargeable batteries.

Fenix TK20R UE specifications

NameTK20R UE
Rated 3 / 5 based on 377 user votes.

The TK20R UE flashlight enhances safety.

Fenix TK20R UE / 3

Body, materials, weight, colors

Weight135 g
Length153.7 mm
Body diameter25.4 mm
Head diameter34 mm
Materialaluminium alloy with HAIII hard-anodized finish
city gray

The TK20R UE is generally comfortable to hold for a long time. Consider the length of the flashlight, it should fit comfortably in your chosen way to carry it. The aluminium body of the TK20R UE has excellent thermal conductivity. The body of TK20R UE flashlight treated with a Type III hard-anodized, anti-abrasive finish. The TK20R UE offers an impressive assortment of captivating colors: camo, city gray, tan, tropic.

Fenix TK20R UE / 1

System, LED, lens, reflector

EmitterLuminus SFT70 LED
Color temperature6000 K
Lenstoughtened AR coated glass
Switchmechanical rear, rotary rear

Luminus has established a positive reputation as a reliable LED manufacturer. Warm, white light is generally more comfortable. If you need long-range light, get a flashlight with a smooth reflector. The AR coating of the lens helps to reduce reflections. The TK20R UE uses multiple switches. They allow for one-handed operation. Mechanical switches offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. The rear switch of the TK20R UE is usually operated with the thumb or finger.

Fenix TK20R UE / 2

Performance, flux, intensity, throw

Flux2800 lm
Intensity53880 cd
Throw464 m
CD/LM factor19.24

The 2800 lm output of TK20R UE provides great flexibility. The 53880 cd flashlight is intensely bright. The throw distance is the farthest distance the flashlight can light an object. Candela per lumen (cd/lm) measures a flashlight's beam intensity.

Software, user interface, modes

Modes4 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The TK20R UE flashlight has a strobe function, it produces a rapid, repetitive flashing of light.

Features, battery, protections

Battery1 x 21700 Li-Ion battery
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes
Impact resistance1.5 m

The TK20R UE flashlight's power source is 1 x 21700 Li-Ion battery. A battery indicator lets users see the battery status. A flashlight's USB charger can be very useful. This is especially true in emergencies. LVP (Low Voltage Protection) is designed to protect the battery. The thermal protection feature helps prevent overheating. The "6" in the IP68 rating shows the level of protection. The flashlight has an IP68 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. This flashlight has an impressive impact resistance rating of 1.5 m. It is built to endure accidental drops or impacts.

Accessories, package contents

Package contents2 x spare o-rings
21700 battery
USB Type-C cable
nylon holster

The included battery is picked to match the power needs of the TK20R UE flashlight. The package includes a holster, it is designed to protectively store your flashlight. When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. When using spare O-rings, follow the maker's instructions.

Official sitehttps://www.fenixlighting.com/

Conclusion, pros and cons

This Fenix flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.


  • lightweight
  • aluminium body
  • body color options
  • AR coated lens
  • tactical switch
  • rotary switch
  • super bright
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof
  • battery included
  • protective holster


  • cool light
  • no auxiliary LEDs
  • non-magnetic


Fenix TK20R UE / TK20RUE photo 1.
Fenix TK20R UE / TK20RUE photo 2.
Fenix TK20R UE / TK20RUE photo 3.
Fenix TK20R UE / TK20RUE photo 4.
Fenix TK20R UE / TK20RUE


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Updated: April 23, 2024

David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.