Olight I3E EOS flashlight review

Philips Luxeon TX LED
90 lm output
500 cd intensity
1 x AAA battery

The Olight I3E EOS flashlight was released in 2016. It uses Philips Luxeon TX LED, TIR reflector and 1 x AAA battery. The powerful emitter in this flashlight provides up to 90 lm output, 500 cd intensity, and a beam distance of 45 m.

Keen to discover if this Olight flashlight lives up to the hype? Keep reading!

Table of Contents

  • Olight I3E EOS 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.

Olight I3E EOS / I3EEOS

The I3E EOS is a powerful and reliable flashlight. It has impressive illumination and durable construction. It uses a TIR lens to form the beam pattern. This flashlight does not have memory function.

Olight I3E EOS specifications

Rated 3 / 5 based on 1520 user votes.

The I3E EOS flashlight allows you to light dark areas.

Olight I3E EOS / 1

Body, materials, weight, colors

Weight19.4 g
Length60.5 mm
Body diameter12.5 mm
Head diameter14 mm
Materialaluminium alloy

The flashlight is lightweight and easy to handle for most people. A smaller flashlight is easier to carry in a pocket, bag, or pouch. The aluminium body of the I3E EOS has excellent thermal conductivity. Factors can influence the color choice of the flashlight body.

Olight I3E EOS / 2

System, LED, lens, reflector

EmitterPhilips Luxeon TX LED
Color temperature5000 K
Switchno switch

Warm, white light is generally more comfortable. The TIR lens makes the LED light collimated. These beams maximize the usable lumens in the target area.

Performance, flux, intensity, throw

Flux90 lm
Intensity500 cd
Throw45 m
CD/LM factor5.56

90 lm can provide a decent amount of brightness and be suitable for many everyday tasks. 500 cd can make things quite bright. It's enough for many everyday tasks. 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.

Software, user interface, modes

Modes1 mode
Mode memoryno
Ramping modeno

Features, battery, protections

Battery1 x AAA battery
Battery indicatorno
Charger portno
Thermal regulationno

The I3E EOS flashlight's power source is 1 x AAA battery. The I3E EOS cannot charge batteries. You may need an external charger to keep your battery going. Use a protected battery, because this flashlight lacks low voltage protection (LVP). This light does not have temperature control feature. The "8" in the IPx8 rating means the highest level of protection.

Accessories, package contents

Package contentsAAA battery

By including a battery with the flashlight, you avoid the extra expense.

Official sitehttps://olightworld.com/

Conclusion, pros and cons

This Olight 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
  • body color options
  • warm light
  • TIR lens
  • waterproof
  • battery included


  • moderated performance
  • low intensity
  • no mode memory
  • no battery indicator
  • no built-in charger
  • no LVP
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic


Olight I3E EOS / I3EEOS photo 1.
Olight I3E EOS / I3EEOS photo 2.
Olight I3E EOS / I3EEOS photo 3.
Olight I3E EOS / I3EEOS


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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.