Fenix TK20R UE: Tactical Flashlight

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

The Fenix TK20R UE (TK20RUE) 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.

The TK20R UE is a powerful and reliable flashlight. With its impressive illumination capabilities and durable construction, it serves as an exceptional lighting tool for various situations and environments. This light has 4 modes of lighting. Since the TK20R UE flashlight automatically recalls the last used mode, there is no need to access higher brightness levels or additional features unless specifically required.

The strobe function can be utilized as a self-defense tool, providing a non-lethal means to deter or disorient attackers The flashlight is designed to be powered by rechargeable batteries that can be easily recharged using a USB cable connected to a power source such as a computer, power bank, or wall adapter.

Fenix TK20R UE (TK20RUE) pictures

Fenix TK20R UE / TK20RUE photo
Fenix TK20R UE / TK20RUE photo
Fenix TK20R UE / TK20RUE photo
Fenix TK20R UE / TK20RUE photo
Fenix TK20R UE / TK20RUE

The specifications below are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Fenix TK20R UE, then don’t hesite and signal the problem to us.

Fenix TK20R UE (TK20RUE) specifications

NameTK20R UE
Rated 3/5 based on 113 user votes.

This Fenix flashlight offers portability, versatility, and reliability in providing illumination.


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

The TK20R UE generally comfortable to hold for extended periods and easy to carry in pockets or bags. The length of a flashlight can also impact its balance and weight distribution. A well-balanced flashlight, where the weight is evenly distributed, can be more comfortable to hold for longer periods and reduce hand fatigue. Aluminium is a lightweight material, which is beneficial for TK20R UE flashlight.

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.


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, and their products are widely used and trusted by lighting professionals and enthusiasts alike. Warm white light is generally considered more comfortable and less harsh on the eyes compared to cool white light. The TK20R UE features a smooth reflector (SMO). If long-range illumination and throw distance are the primary requirements, a flashlight with a smooth reflector may be more suitable.

The AR coating of the lens helps to mitigate these reflections by altering the refractive index of the lens surface. The TK20R UE uses multiple switches. Depending on the placement and design of the switches, a multiple switch configuration can allow for one-handed operation. This is particularly helpful in situations where you need to hold or manipulate objects with one hand while using the flashlight with the other hand.

The TK20R UE has mechanical switch. Mechanical switches often offer tactile feedback, allowing users to feel a distinct click or resistance when the switch is pressed. This feedback helps users confirm that the switch has been activated or deactivated, providing a reassuring sense of control and awareness. The placement of the rear switch at the end of the TK20R UE flashlight facilitates a secure forward grip. This grip allows for better control and handling of the flashlight, especially in situations where precision and stability are important.


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

The 2800 lm output of TK20R UE provides greater versatility, as you can adjust the brightness levels to suit different lighting needs. The intense brightness of a 53880 cd flashlight can provide exceptional visibility and enhance safety in low-light or dark environments. It can help with target identification, provide effective signaling capabilities, or serve as a powerful tool for self-defense. The throw distance refers to the maximum distance at which the flashlight can effectively illuminate an object or target. The stated throw distance typically indicates the point at which the brightness falls below a specified threshold, such as 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.


Modes4 modes
Mode memoryyes
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The TK20R UE has mode memory. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again. The strobe function on the TK20R UE flashlight is a feature that produces a rapid and repetitive flashing of light. It is designed to create a disorienting or attention-grabbing effect.


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

The power source of the TK20R UE flashlight is 1 x 21700 Li-Ion battery, providing reliable and long-lasting energy for optimal performance. Having a battery indicator on a flashlight is beneficial as it allows users to monitor the battery status and make informed decisions regarding recharging or replacing the battery. It helps prevent unexpected power failures during critical situations and ensures that the flashlight is ready for use when needed.

The TK20R UE flashlight can be charged directly from a USB power source, such as a wall adapter, computer, power bank, or car charger. This allows for convenient and versatile charging options, as you can utilize various USB power sources to recharge the flashlight's internal battery. When the TK20R UE flashlight detects that the voltage of the battery has dropped to a certain threshold, it automatically reduces or cuts off the power output to prevent further discharge. This helps to preserve the battery's capacity and prevent it from reaching a critically low voltage level.

The TK20R UE has thermal protection feature. The thermal protection mechanisms are designed to monitor and regulate the temperature of the flashlight during operation. This feature helps prevent overheating, which can be detrimental to the flashlight's performance, battery, and overall safety. The "6" in the IP68 rating represents the level of protection against solid objects, specifically dust and foreign particles. It indicates that the TK20R UE flashlight, is fully protected against the entry of dust and other solid objects.

The TK20R UE flashlight with IP68 rating can withstand being submerged in water beyond 1 meter for a prolonged period, typically specified by the manufacturer. The TK20R UE has an impact resistance of 1.5 m. The impact resistance of a flashlight refers to its ability to withstand physical shocks or impacts without being damaged.


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

The included battery is selected to meet the specific power requirements of the TK20R UE flashlight, ensuring reliable and efficient operation. The package comes complete with a holster designed specifically to provide a secure and protective storage solution for your flashlight. When gripping the flashlight with the lanyard around your wrist, it provides a more secure and stable hold. Regularly replacing worn or damaged O-rings helps maintain the overall durability and performance of the flashlight.

The performance of the Fenix TK20R UE flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Fenix TK20R UE (TK20RUE) comparisons

According to our statistics, the Fenix TK20R UE flashlight was most often compared on our site with the following flashlights.

Fenix HM65R-T (HM65R-T) Fenix HM65R-T Fenix TK20R UE (TK20RUE) Fenix TK20R UE Fenix TK30 (TK30) Fenix TK30 Fenix C7 (C7) Fenix C7 Fenix E35R (E35R) Fenix E35R Fenix LR80R (LR80R) Fenix LR80R Fenix E20 v2 AA (E20V2AA) Fenix E20 v2 AA Fenix TK20R (TK20R) Fenix TK20R

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