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Klarus XT21X (2019) review

2019
Cree XHP70.2 LED
4000 lm output
24964 cd intensity
1 x 21700 Li-Ion battery

The Klarus XT21X (XT21X) released in 2019. It uses Cree XHP70.2 LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4000 lm output, 24964 cd intensity, and a beam distance of 316 m.

This light has 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. The XT21X flashlight is rechargeable easily via USB port.

Table of contents:

Klarus XT21X (XT21X) specifications

Brand
Klarus
Name
XT21X
Type
XT21X
Rating
Rated 3/5 based on 144 user votes.
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Launch
2019
Form
flashlight

Body

The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.

Weight
158 g
Length
161 mm
Body diameter
27.5 mm
Head diameter
41 mm
Material
aluminium alloy with HAIII hard-anodized finish
Colors
black

System

The emitter of XT21X manufactured by Cree, a US-based LED manufacturing company. The XT21X has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.

Emitter
Cree XHP70.2 LED
Color temperature
6500 K
Reflector
SMO
Lens
toughtened AR coated glass
Switch
electronic side, mechanical rear, mode pedal rear

Performance

The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.

Flux
4000 lm
Intensity
24964 cd
Throw
316 m
CD/LM factor
6.24

Software

The XT21X has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again. The XT21X is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed.

Modes
5 modes
Mode memory
yes
Ramping mode
no
Strobe
yes
SOS/Beacon
yes

Features

The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with an integrated charger, and it works with any USB power source. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The built-in thermal control automatically adjusts brightness output to prevent overheating.

Battery
1 x 21700 Li-Ion battery
Battery indicator
yes
Charger port
microUSB
LVP
yes
Thermal regulation
yes
Protection
IPx8
AUX LEDs
no
Magnetic
no

Accessories

It comes with a battery. The battery must be fully charged before you first use your XT21X. The package includes a holster to safely store your flashlight. The lanyard prevents accidental loss of the flashlight.

Package contents
21700 battery
lanyard
microUSB cable
nylon holster
spare o-ring

The performance of the Klarus XT21X flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Klarus XT21X, then don’t hesite and signal the problem to us.

Klarus XT21X (XT21X) pictures

If there’s information about the Klarus XT21X that you would like to see on this site, then write to our webmaster@flashlightchart.com address.

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