Professional Tactical Flashlight with 4400 Lumens of Extreme Brightness
The KLARUS XT21X PRO is a flagship tactical flashlight designed for law enforcement, security professionals, outdoor enthusiasts, hunters, campers, and emergency responders. Delivering an impressive 4400 lumens and a beam distance of up to 336 meters, it provides exceptional illumination for demanding situations.
Originally developed to meet the requirements of professional tactical units, the XT21X PRO combines powerful performance, intuitive operation, USB-C charging, and rugged durability in a compact and lightweight design.
Key Features
✅ Maximum Output: 4400 Lumens
✅ Beam Distance: 336 Meters
✅ High-Capacity 5000mAh 21700 Rechargeable Battery
✅ USB-C Fast Charging (5V/2A)
✅ Built-In Power Bank Function
✅ Advanced Triple-Switch Tactical Control
✅ Tactical & Outdoor Operating Modes
✅ Instant Turbo & Strobe Access
✅ IPX8 Waterproof Rating
✅ Impact Resistance: 1 Meter
✅ Intelligent ITS Temperature Control System
✅ Up to 200 Hours Runtime
✅ Compatible with 21700 and 18650 Batteries
Extreme 4400-Lumen Performance
Powered by the advanced CREE XHP70.2 LED, the XT21X PRO delivers an intense 4400-lumen output, capable of illuminating large areas, trails, buildings, forests, and search zones.
Ideal For:
- Tactical operations
- Security patrols
- Search and rescue
- Camping and hiking
- Night cycling
- Hunting
- Emergency preparedness
- Everyday professional use
The optimized orange-peel reflector creates a balanced beam with excellent flood and throw performance.
Innovative Triple-Switch Tactical Interface
The patented control system features three independent switches, providing instant access to critical lighting functions.
Tactical Mode
- One-touch Turbo
- One-touch Strobe
- Fast mode selection
Outdoor Mode
- One-touch Low Mode
- Mode Memory Function
- Easy brightness adjustment
This advanced interface allows intuitive operation even while wearing gloves.
Tactical & Outdoor Dual Operating Systems
The XT21X PRO includes two dedicated operating modes optimized for different scenarios.
Tactical Mode
Perfect for professional users requiring immediate access to maximum brightness and strobe functions.
Outdoor Mode
Designed for camping, hiking, travel, and daily use with convenient brightness cycling and memory functions.
USB-C Charging & Power Bank Function
The flashlight features a modern USB-C charging port supporting:
- Fast charging
- USB-C to USB-C charging
- Portable charging from power banks
- Vehicle charging
- Laptop charging
Emergency Power Bank
The built-in power bank function allows the flashlight to charge:
- Smartphones
- GPS devices
- Wireless earbuds
- Portable electronics
An excellent emergency backup power source during outdoor adventures.
High-Capacity 5000mAh Battery
The included premium 21700 Li-Ion battery offers exceptional runtime and reliability.
Battery Advantages
- 5000mAh capacity
- Up to 200 hours runtime
- High discharge performance
- Rechargeable via USB-C
- Long service life
The flashlight is also compatible with 18650 batteries using the included battery adapter.
Intelligent ITS Temperature Control System
The next-generation ITS (Intelligent Temperature System) continuously monitors internal temperatures.
Benefits include:
- Real-time temperature regulation
- LED protection
- Electronic component protection
- Improved reliability
- Enhanced user safety
- Efficient heat dissipation
Large cooling fins help maintain stable performance during extended use.
Five Brightness Levels + Emergency Modes
Brightness Levels
- Turbo
- High
- Medium
- Low
- Moonlight
Special Modes
- Strobe
- SOS
Quick-access shortcuts ensure instant activation when needed.
Rugged Tactical Construction
Manufactured from aerospace-grade aluminum alloy with a hard-anodized finish, the XT21X PRO is built for professional use.
Construction Features
- Aggressive tactical bezel
- Anti-roll body design
- Deep grip knurling
- Pocket clip included
- Heat dissipation grooves
- Ergonomic one-handed operation
IPX8 Waterproof Protection
Built to withstand harsh weather conditions and challenging environments.
Certified Protection
- IPX8 waterproof
- Submersible up to 2 meters
- Rain resistant
- Snow resistant
- Dust resistant
- Suitable for extreme outdoor use
Reliable Safety Protection System
The flashlight incorporates multiple protection technologies:
- Overcharge Protection
- Overcurrent Protection
- Overvoltage Protection
- Reverse Polarity Protection
- Heat Protection
- Shock Protection
Backed by a 5-Year Manufacturer Warranty
Package Contents
- KLARUS XT21X PRO Tactical Flashlight
- 5000mAh 21700 Rechargeable Battery
- 18650 Battery Adapter
- USB-C Charging Cable
- USB-A Adapter
- USB-C to Lightning Adapter
- Pocket Clip
- Holster
- Lanyard
- Spare O-Ring
- User Manual






















































