Klarus XT21X Pro Tactical Flashlight – 4400 Lumens

(2 customer reviews)


Klarus’s XT21X Pro tactical flashlight provides you with a max of 4400 lumens with a throw of 336 meters. With its cellphone charger mode, the USB-C to USB-C charging compatibility can bring your phone from 0% to 100% on a single charge. Also, this flashlight has the option of tactical/ outdoor dual settings to accomodate for different situations. The dual-switch design allows for one-touch strobe, turbo and low activation. The tactical setting is tailor-made for self defense and LEO enforcement with instant one-touch strobe anytime. On the other hand, the outdoor setting is specifically designed for outdoor use.

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Klarus Mi2 USB Keychain Light-0
SKU: XT21X Pro Categories: , , , ,
IS This The ULTIMATE Tactical Flashlight?? | Klarus XT21X Pro 4400 Lumens


It includes…

  • One-Touch Low, allowing you to preserve night-vision
  • Mode memory, allowing you to directly enter your last used output
  • SOS emergency signal
  • High/Medium/Low output modes for different needs
  • Rugged metal Mode switch (5 years warranty)
  • Max output of 4,400 lumens and 336m beam distance
  • Dual-switch tailcap design
  • Additional side switch
  • 5 brightness levels plus strobe and SOS mode
  • Doubles as a powerbank to charge other devices
  • Tactical and outdoor mode
  • Runs off a 5000mAh 21700 Li-ion battery (included) 
  • USB-C rechargeable
  • Temperature control system
  • Crenelated bezel
  • 2m impact resistance
  • IPX8 waterproof rating
  • Package Includes:
  • 1 x Klarus XT21X Pro
  • 1 x USB-C charging cable
  • 1 x 5000mAh 21700 Li-ion battery
  • 1 x 18650 battery adapter
  • 1 x O-ring
  • 1 x Holster
  • 1 x Lanyard
  • 1 x C to A adapter
  • 1 x C to L adapter
  • 1 x User manual


  • LED: 1 x CREE XHP-70.2 LED
  • Runs On: 1 x 5000mAh 21700 Li-ion battery (included) or 18650 Li-ion battery with included adapter
  • Max beam distance: 336m
  • Peak beam intensity: 19,506cd
  • Brightness Output: 
  • Moonlight: 5 Lumens – 200 Hours
  • Low: 100 Lumens – 30 Hours
  • Medium: 400 Lumens – 9 Hours
  • High: 1,500 Lumens – 4 Hours
  • Turbo: 4,400 Lumens – 2 H 30 Mins
  • Strobe: 4,400 Lumens – 5 Hours
  • SOS: 100 Lumens – 65 Hours
  • Impact resistant: 1m
  • Waterproof: IPX8
  • Dimensions: 
  • Length – 163.1mm
  • Head Diameter – 41mmmm
  • Body Diameter – 29.2mm
  • Weight: 243.5g (including battery)



Additional information

Weight .32 kg

2 reviews for Klarus XT21X Pro Tactical Flashlight – 4400 Lumens

  1. Vicky (verified owner)

    OMG is this torch bright. It works brighter than the lights in my house.
    I brought two, one for me for when the power goes off and one for hubby for work. So impressed with the brightness, the amount of light it throws, the number of different settings and it actually feels nice to hold.
    Brilliant product, very happy.

  2. Nick Hossack (verified owner)

    This is an incredible light. I’m surprised how easy it is to use and I’m also surprised by the power of the light beam. I get up at 4am and take my dog for a walk. I just use the button at the end as I need light. I also feel very comfortable that the strobe comes on in one easy touch.

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