Klarus XT21X Pro Flashlight










The Klarus XT21X Pro Flashlight is a high-performance tactical torch with extreme light output and professional build quality. With a maximum output of no less than 4400 lumens, a range of up to 336 metres and robust IPX8 water resistance, this torch is designed for demanding applications such as airsoft, security, outdoor and wilderness use.
Material and mounting
The housing is made of anodised 6061-T6 aluminium, which provides excellent protection against shocks, wear and corrosion. The lamp is drop-proof up to 2 metres and completely waterproof according to the IPX8 standard, which means it can be submerged up to 2 metres. The hardened optical glass lens with anti-reflective coating is scratch-resistant and provides optimum protection for the powerful LED.
The OP reflector, with its orange peel structure, provides a wider, evenly distributed light beam, effectively illuminating both the centre and the sides.
Usage and compatibility
The Klarus XT21X Pro Flashlight runs on a powerful 5000 mAh 21700 Li-Ion battery and is also compatible with 18650 batteries. Charging is done via an external USB-C connection. In addition, the torch has a power bank function that allows you to charge other devices in an emergency. A coloured LED indicator clearly shows the battery status.
The lamp offers multiple light settings for different situations:
• Turbo 4400 lumens, approx. 2.3 hours, range 336 metres
• High 1500 lumens, approx. 4 hours, range 190 metres
• Medium 400 lumens, approx. 9 hours, range 100 metres
• Low 100 lumens, approx. 30 hours, range 50 metres
• Moonlight 5 lumens, approx. 200 hours, range 15 metres
• Strobe and SOS
The dual tactical switch with memory function and lock prevents accidental activation or mode changes. The Intelligent Thermal Protection System, ITS, continuously monitors the temperature and automatically adjusts the power to prevent overheating.
Key features
• Maximum output of 4400 lumens• Range up to 336 metres• 21700 Li-Ion 5000 mAh battery included• USB-C rechargeable and power bank function• IPX8 waterproof up to 2 metres• Drop resistant up to 2 metres• Dual tactical switch with memory and lock• ITS temperature protection
Safety and recommendations
Never point the lamp directly into the eyes of others, especially in turbo or strobe mode. Only use compatible, high-quality Li-Ion batteries. Regularly check the seals to maintain IPX8 water resistance. For long-term storage, it is recommended to keep the battery partially charged.
Why choose the Klarus XT21X Pro Flashlight?
The Klarus XT21X Pro Flashlight combines exceptional light output, long battery life and professional build quality in a compact format. With its 4400 lumen output, power bank function and robust IPX8 construction, it is a reliable choice for airsoft, security and outdoor applications where maximum performance is required.
Frequently asked questions
How powerful is the Klarus XT21X Pro?
The torch delivers a maximum of 4400 lumens with a range of up to 336 metres.
Can I charge other devices with this torch?
Yes, the XT21X Pro has a power bank function via USB-C.
Is the lamp suitable for harsh weather conditions?
Yes, thanks to its IPX8 waterproof rating and 2-metre drop resistance, it is suitable for intensive outdoor use.
The Klarus XT21X Pro Flashlight provides extreme light output and professional reliability in one compact tactical torch.

Product specifications
- Article number
- 11745306000
- Weight
- 454
- Weight unpackaged
- 231gr
- Brand
- Klarus
- Type
- XT21X Pro Flashlight
- Lumen
- 4400
- Strobe function
- icon-yes-circle-fill
- Battery
- 1x 21700 (Included)
































