
Klarus E1 (2019) review
The Klarus E1 (E1) released in 2019. It uses Cree XP-L HI LED, TIR reflector and 1 x special 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1000 lm output, 9025 cd intensity, and a beam distance of 190 m.
It uses a TIR lens to form the beam pattern. This light has 4 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.
Table of contents:
Klarus E1 (E1) specifications
- Brand
- Klarus
- Name
- E1
- Type
- E1
- Rating
- Launch
- 2019
- Form
- flashlight
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
- Weight
- 50.5 g
- Length
- 105.1 mm
- Body diameter
- 22 mm
- Head diameter
- 23 mm
- Material
- aluminium alloy with HAIII hard-anodized finish
- Colors
- black
System
The emitter of E1 manufactured by Cree, a US-based LED manufacturing company. A TIR lens works on the principle of total internal reflection. The TIR lens collimates the LED light into efficient, well-controlled light beams that maximize the usable lumens in the target area.
- Emitter
- Cree XP-L HI LED
- Color temperature
- 6500 K
- Reflector
- TIR
- Lens
- TIR
- Switch
- dual electronic 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
- 1000 lm
- Intensity
- 9025 cd
- Throw
- 190 m
- CD/LM factor
- 9.03
Software
The E1 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 E1 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
- 4 modes
- Mode memory
- yes
- Ramping mode
- no
- Strobe
- yes
- SOS/Beacon
- yes
Features
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 special 18650 Li-Ion battery
- Battery indicator
- no
- Charger port
- yes, on special battery
- 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 E1. The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight.
- Package contents
- clip
lanyard
microUSB cable
pouch
spare o-ring
special 18650 battery
The performance of the Klarus E1 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 E1, then don’t hesite and signal the problem to us.
Klarus E1 (E1) pictures

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