Fenix TK21R rechargeable flashlight, black
Discover the Fenix TK21R tactical flashlight designed for those who demand absolute reliability and top performance. With an impressive luminous flux of up to 3600 lumens (ANSI) and a range of up to 480 meters, it will provide perfect visibility in any situation. Power is provided by a high-capacity Li-ion battery 21700 6000 mAh, which is included in the package and is recharged directly in the flashlight via a modern USB-C port. It is protected by a carefully designed screw cap, which guarantees resistance to water, dust and dirt even in extreme environments. The battery is ready to supply energy for up to more than 72 hours of continuous lighting. Thanks to its robust and waterproof design, this tactical flashlight is an ideal partner for demanding outdoor conditions, professional use, for armed forces and for hunting activities. Intuitive control is provided by a dual tactical switch that allows for immediate response in crisis situations – whether you need to quickly activate the strobe for disorientation or immediately switch to full light output. The head of the lamp is equipped with a stainless steel impact rim, which is additionally equipped with three tungsten tips. This makes the Fenix TK21R not only a powerful light source, but also an effective tool for emergency glass breaking or effective self-defense.
All lamp parameters (luminous flux, battery operation time, waterproofing, afterglow and impact resistance) are measured in accordance with the ANSI/NEMA FL 1-2009 standard.
Parameters of the Fenix TK21R LED flashlight
- The powerful Luminus SFT-90 LED with a lifespan of 50,000 hours is used.
- Five power modes: burst 3600 lumens (2.5 hours*) -> 1000 lumens (3.5 hours) -> 350 lumens (7.5 hours) -> 30 lumens ( 72.5 hours ) -> strobe 3000 lumens (variable frequency stroboscopic flashing).
- *Burst mode endurance is the total time including reduced power after overheating protection is activated.
- Parabolic aluminum reflector for a perfect light cone with a range of 480 meters (58,000 cd).
- It is powered by a 21700 6000 mAh Li-ion battery (included).
- Max. battery diameter 22.0 mm, max. Battery length 77.0 mm.
- Electronics with digital power regulation and protection against reverse battery insertion.
- Two-spring system – high durability of the flashlight when used on a weapon.
- Intelligent protection against overheating.
- Dimensions 15.35 cm (length) x 3.6 cm (head diameter) x 2.54 cm (body diameter).
- Weight 221.4 grams including battery.
- Made of aircraft hardened aluminum type A6061-T6.
- Impact-resistant from a fall from a height of 1 meter.
- Trapezoidal threads highly resistant to wear.
- The lamp has a memory and will always turn on in the last set mode (does not apply to the strobe).
- Durable, hard-to-scratch surface - Type III hard anodized.
- Waterproof and dustproof according to the IP68 standard (tested under water at a depth of 2 meters for 30 minutes).
- Hardened ultra clear glass lens with anti-reflective coating.
- Dual tactical switch at the end of the lamp (momentary on/off function).
- Fixed clip for safe and easy carrying of the lamp (removable).
- Thanks to its design, the lamp does not slip in your hand and does not roll when placed.
- The flashlight comes with a Fenix ARB-L21-6000 battery, a USB-C charging cable, a wrist strap, a belt holster, and a spare O-ring.
- Optional accessories include: Fenix ALR-01 tactical ring, AER-05 or AER-04 cable switch (without strobe, maximum output is limited to 1200 lm), AOD-M white diffuser, AOT-04 white and red traffic cone.
- The following accessories are also compatible with the flashlight: M-LOK mount ALG-16, quick-release rail mount ALG-15, quick-release rail mount ALG-00, metal magnetic barrel mount, plastic magnetic barrel mount, flashlight mount on optics, metal optic mount, Fenix ALD-05 strap for using the flashlight on a helmet, Fenix bike mount, ALP-10L holster, ALP-20 holster.
Fenix TK21R flashlight control
From the factory, there may be an insulating cap inside the lamp on the battery. Before first use, remove it from the battery.
To turn on , press the larger tactical button located at the end of the flashlight, for instant activation, hold the button gently. By pressing the secondary toggle button, you can switch between power modes at any time during operation. To switch to flash mode when the flashlight is on, hold the switch button for about 0.5 seconds. Press and hold the toggle button to turn the light directly into strobe mode. BURST mode (3600 lumens) can also be directly activated at any time by holding down the main tactical button for 0.5 seconds.
Memory for the last mode used - The flashlight has a memory and will always turn on in the last mode set, except for the strobe.
Battery replacement - Unscrew the lamp terminal and insert the battery with the positive pole facing inwards. Then fully tighten the end cap again.
Charging - Loosen the protective nut under the lamp head to reveal the charging port and plug the USB-C charging cable into the lamp's charging connector. Tighten the nut again after charging is complete. When using a powerful 9 V/3 A USB power supply, a fully discharged battery will be charged in 1.5 hours, when using a 5 V/3 A USB power supply, it will be charged in 2.5 hours. The lamp cannot be used while charging. The indicator lights red while charging. It lights up green when fully charged. If charging fails or the battery is inserted backwards, the indicator flashes red or does not light up at all.
Intelligent overheating protection - due to the fact that the lamp reaches a huge output of 3600 lumens, its temperature increases. If the temperature exceeds 55°C, the power will be automatically reduced. As soon as the temperature drops below 55°C, the power will automatically increase again.
Battery charge indicator - Every time the light is turned on (except for the strobe), the battery charge indicator opposite the charging connector lights up for 3 seconds. If the indicator light is green, the battery is more than 85% charged. Green flashing means 50-85% capacity. If it lights up red, it is charged to 25-50%. Blinking red means there is less than 25% battery capacity left.
Low battery warning - the flashlight will gradually automatically switch to the lowest power mode, or if it is already at the lowest power, it will flash 3 times every five minutes.
Warning
- Use only high-quality 21700 rechargeable batteries with protective electronics.
- Do not shine the light on flammable objects from close proximity, as this may damage them or cause a fire due to the high temperature!
- Remove the battery or loosen the terminal to prevent accidental activation during storage or transportation in a closed environment.
- Keep this light out of the reach of children and do not shine it directly into anyone's eyes!
- Insert the batteries with the positive pole towards the lamp head.
- If the protective rubber rings appear damaged after a long period of use, replace them. The rings also need to be lubricated to prevent rubber erosion. By following these rules, the lamp will be properly protected against water.
- If the light is flashing, not switching to higher power modes, or not turning on, it could be for one of the following reasons:
- The battery is discharged - charge it or replace it.
- The contacts inside the lamp are dirty - clean them with a cotton swab dipped in alcohol.
- The head, body or back of the lamp is loose, tighten them.
Power: 3600lm
Max. endurance: 60 hours
Range: 330m
Number of modes: 5
Weight: 197g
Power supply: 1x 21700
Light source: Luminus SFT-90
Waterproof: IP68 (immersion 2 m)
| Colour | black |
| Power supply type | USB-C |
| Battery type | rechargeable |
| Sport | hiking, camping, lifestyle |
| product ID | 352831 |
All the answers to questions about delivery, payment, security, returns, warranty and much else.

There are currently no reviews