Klarus E2 flashlight review

1600 lm output
9025 cd intensity
1 x 18650 Li-Ion battery

The Klarus E2 flashlight was released in 2020. It uses Cree XHP35 HI LED, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1600 lm output, 9025 cd intensity, and a beam distance of 190 m.

Wondering if this flashlight is a hit? Stay tuned!

Table of Contents

  • Klarus E2 specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
    • Links
  • Conclusion, pros and cons
  • Photos
  • Comparisons

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage.

Klarus E2 / E2

The E2 is a powerful and reliable flashlight. It has impressive illumination and durable construction. TIR technology minimizes hotspots, dark spots, and irregularities in the beam of E2. This light has 4 modes of lighting. The E2 mode memory eliminates the need to cycle through modes. It provides convenience and saves time. You can use the strobe function as a self-defense tool. This Klarus USB rechargeable flashlight comes with versatile charging options.

Klarus E2 specifications

Rated 3 / 5 based on 1495 user votes.

The E2 flashlight enhances safety.

Klarus E2 / 1

Body, materials, weight, colors

Weight57.6 g
Length115.3 mm
Head diameter23.2 mm
Materialaluminium alloy with HAIII hard-anodized finish

The E2 is small, compact, and designed for ultra-portability. The length of a flashlight can affect how it feels in your hand and how you can grip it. The aluminium body of the E2 has excellent thermal conductivity. The body of E2 flashlight treated with a Type III hard-anodized, anti-abrasive finish. The E2 flashlight comes in a stylish black color.

Klarus E2 / 5

System, LED, lens, reflector

EmitterCree XHP35 HI LED
Color temperature6500 K
Switchmechanical rear, mode pedal rear

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. The TIR lens of the E2 can reduce light loss, it captures and redirects much of the emitted light. The E2 flashlight has multiple switch options. Mechanical switches are usually robust. The rear switch of the E2 is usually operated with the thumb or finger.

Klarus E2 / 2

Performance, flux, intensity, throw

Flux1600 lm
Intensity9025 cd
Throw190 m
CD/LM factor5.64

With 1600 lm, the E2 flashlight will offer a brighter and more powerful beam of light. The E2 flashlight has 9025 cd, it provides a much brighter and more intense beam. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. Candela per lumen (cd/lm) measures a flashlight's beam intensity.

Klarus E2 / 4

Software, user interface, modes

Modes4 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The E2 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at, this makes it hard for them to concentrate. The E2's SOS mode produces a specific sequence of long and short flashes.

Klarus E2 / 3

Features, battery, protections

Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
Thermal regulationyes

The E2 flashlight's power source is 1 x 18650 Li-Ion battery. The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with a built-in charger. The flashlight detects when the battery's voltage has dropped to a certain level. The built-in thermal control adjusts brightness output to prevent overheating. The "8" in the IPx8 rating means the highest level of protection.

Accessories, package contents

Package contents18650 battery
microUSB cable
spare o-ring

By including a battery with the flashlight, you avoid the extra expense. The lanyard prevents accidental loss of the flashlight. When using spare O-rings, follow the maker's instructions.

Official sitehttps://www.klaruslight.com/

Conclusion, pros and cons

This Klarus flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.


  • lightweight
  • aluminium body
  • TIR lens
  • tactical switch
  • adequate performance
  • multiple modes
  • mode memory
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • pouch


  • cool light
  • no auxiliary LEDs
  • non-magnetic


Klarus E2 / E2 photo 1.
Klarus E2 / E2 photo 2.
Klarus E2 / E2 photo 3.
Klarus E2 / E2 photo 4.
Klarus E2 / E2 photo 5.
Klarus E2 / E2 photo 6.
Klarus E2 / E2


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Updated: April 23, 2024

David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.