Klarus XT21X 4000 Lumens Rechargeable Advanced Tactical Flashlight, Beam Reach 316m, CREE XHP70.2 P2 LED, 5000mAh IMR 21700 Battery, Super Bundle

Product Code: Klarus-XT21X-4000-Lumens

Availability:Out of stock


  • OUTSTANDING PERFORMANCE: Equipped with a CREE XHP 70.2 P2 LED, maximum output up to 4000 lumens, beam reach 1036ft (316M)
  • UNIQUE TACTICAL SWITCH: Patented Tail Dual-Switch and side switch accommodates any user patterns. Tail and side switch has unique lockout function to prevent accidental illumination
  • POWERFUL BATTERY: 1 x 5000mAh rechargeable 21700 battery, can support a maximum 200 hours runtime. The useful battery capacity indicator display enables the user to control the usage according to the remaining charge. Micro-USB 2A fast charging, convenient and fast
  • AI CONTROL: Innovative ITS (Intelligent Temperature Protection System) technology, monitors temperature and adjusts output in real-time when the flashlight gets too hot on the turbo output mode
  • ROBUST STRUCTURE: High precision CNC processed Aero-space Aluminum alloy body, mil-spec hard anodized (HA III), lightweight yet robust constructed, impact-resistant up to 1 meter and IPX8 waterproof



KLARUS found in 2011, is dedicated to development new technologies and had done numerous innovations in flashlight. Our flashlights are designed to meet the extreme demands of Law Enforcement, Military, Security Professionals, Industry Safety, and Outdoor Adventures. All of our products are designed and manufactured to not just great function but also be safe for their intended use. Quality and Safety for our consumers is Klarus top priority.

XT21X is one of the most powerful handheld tactical flashlights on the market.

  • Equipped with CREE XHP 70.2 P2 LED,Up to 4000 lumens, Maximum Beam reach 316M.
  • Hardened glass lens with scratch resistant AR coating.
  • Polarity Protection avoid damage from incorrect battery orientation.
  • Micro-USB 2A fast charging, convenient and fast.
  • Tactical/Outdoor two settings design to meet all scenarios and lighting needs. The default setting is tactical Setting and it offers you a One-Touch Turbo and One-Touch Strobe with the tail switches. In Outdoor Setting, the tail switches offer you a One-Touch Turbo and a One-Touch Low.
  • Five lighting levels with optimal output for longer runtime and superior light output distribution.
  • Turbo: 4000 lumens/1.2h
  • High: 1200 lumens/2.3h
  • Medium: 400 lumens/6.5h
  • Low: 100 lumens/21h
  • Moonlight: 5 lumens/200h
  • Strobe: 4000 lumens/2.4h
  • SOS: 100 lumens/63h

Lockout Function

Side switch and tail switch can both be locked out to prevent accidental activation.

Side Switch Lockout Function:

  • When the light is OFF and in unlocked state, click and hold the side switch for 5 seconds until the flashlight flash twice. The flashlight is now locked.

Tail Switch Lockout Function:

  • Loosen the tail cap for half circle or more.

Battery Indicator

The battery indicator is located on the side switch, you can know the remaining battery and make the plan to charge.

Indicator glowing green (Battery remaining>=70 % ),

Indicator glowing orange(Battery remaining 30-70%),

Indicator glowing red (Battery remaining<=30%),

Indicator flashing red (less than 10% capacity remaining).


Klarus XT21X 4000 Lumens Rechargeable Advanced Tactical Flashlight, Beam Reach 316m, CREE XHP70.2 P2 LED, 5000mAh IMR 21700 Battery, Super Bundle