Klarus XT21X


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Klarus XT21X
  • Head Diameter: 41 mm / 1.61"
  • Body Diameter: 27.5 mm / 1.08"
  • Length: 161 mm / 6.34"
  • Weight: 158 g / 5.57 oz. (excluding battery)
  • Dual tail switch and side switch
  • Micro USB 2A fast charging
  • Intelligent Temperature Protection System (ITS) technology monitors temperature and auto-adjusts output levels in real time
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Klarus XT21X

4 Reviews

5.0 Overall rating



Solid torch. 4000 lumens extremely bright. When I put it on in a dark room it was brighter than when the overhead light was on.


Very bright and lights up whole area. Good dimmer levels and great strobe. Just what I wanted.


realy nice well made


Klarus XT21X, Looking to buy a Klarus form some time, best price to be found here, website easy to navigate, super fast dispatch, safely packaged [Li-ion battery] will use again and would definitely recommend.


The Klarus XT21X tactical flashlight has an impressive maximum output of 4000 lumens from the Cree XHP70.2 P2 6500K cool white LED. The torch is powered by 1 x 21700 li-ion battery and is rechargeable via a micro USB port found at the head of the light; a Klarus battery and charging cable are included.

The flashlight has a range of outputs, including five brightness levels ranging from 5 to 4000 lumens. To optimise the user experience, the XT21X has two modes offering direct access to different settings. The Tactical mode features one touch strobe and turbo, whereas the Outdoor setting has one touch turbo and low mode, plus SOS via the side switch.

Designed for high performance the XT21X has a range of protective features, including over-current, over-charging, thermal, impact, reverse polarity and over-voltage protection. Made from aluminium with an anti-slip textured body tube, the flashlight provides durability and comfort.

Brightness Levels:
Turbo: 4000 lumens - 1.2 hrs runtime
High: 1200 lumens - 2.3 hrs runtime
Medium: 400 lumens - 6.5 hrs runtime
Low: 100 lumens - 21 hrs runtime
Moonlight: 5 lumens - 200 hrs runtime

Plus Strobe (4000 lumens) and SOS (100 lumens).

Maximum beam distance 316 meters, waterproof to IPX8 and resistant to impacts up to 1 meter.

Includes: USB charging cable, o-ring, Klarus 21700 battery, holster, pocket clip, lanyard.