Olight I1R 2 EOS 150lm In-depth review, Pros and Cons

150 lm output
400 cd intensity
integrated Li-Ion battery

The Olight I1R 2 EOS (I1R2EOS) released in 2019. It uses CSP LED, TIR reflector and integrated Li-Ion battery. The powerful emitter in this flashlight provides up to 150 lm output, 400 cd intensity, and a beam distance of 40 m.

This flashlight has a wide range of applications across various domains. It is an indispensable tool for outdoor activities like camping, hiking, or night-time exploration, offering guidance and safety. TIR lens plays a significant role in shaping the beam pattern of the I1R 2 EOS flashlight. This light has 2 modes of lighting. Without mode memory, each time you turn on the I1R 2 EOS, it will start from the default or first mode in the sequence. The flashlight is designed to be powered by rechargeable batteries that can be easily recharged using a USB cable connected to a power source such as a computer, power bank, or wall adapter.

Olight I1R 2 EOS (I1R2EOS) pictures

Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS photo
Olight I1R 2 EOS / I1R2EOS

The specifications below 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 Olight I1R 2 EOS, then don’t hesite and signal the problem to us.

Olight I1R 2 EOS (I1R2EOS) specifications

NameI1R 2 EOS
Rated 4/5 based on 1218 user votes.

This Olight flashlight offers portability, versatility, and reliability in providing illumination.


Weight13 g
Length44 mm
Body diameter14.8 mm
Head diameter14.8 mm
Materialaluminium alloy with HAIII hard-anodized finish

The 13 g flashlight would be considered extremely lightweight for a handheld flashlight. It's important to consider the length of the flashlight to ensure it fits comfortably in your desired carrying method. Aluminium is a lightweight material, which is beneficial for I1R 2 EOS flashlight. The HAIII coating often has a matte or textured finish, which enhances grip and provides a comfortable feel in the hand. This can be particularly useful in situations where a secure grip on the flashlight is essential, such as in wet or slippery conditions. This flashlight offers a wide array of color options, allowing you to choose from a diverse range of hues to suit your personal style and preferences.


EmitterCSP LED
Color temperature4000 K

Color temperature is a characteristic of light. It is measured in units called Kelvin (K) and is used to quantify the color appearance of light sources, particularly white light. The TIR lens of I1R 2 EOS consists of a single-piece lens made of a transparent material, typically acrylic or polycarbonate. Its shape and internal geometry are designed to achieve specific light distribution patterns, such as flood or spot beams, by manipulating the behavior of light rays.


Flux150 lm
Intensity400 cd
Throw40 m
CD/LM factor2.67

If you mainly need a flashlight for basic tasks like finding keys, navigating in dimly lit areas, or occasional use around the house, 150 lm can be adequate. 400 cd can provide a reasonable level of luminous intensity for many everyday lighting tasks. The throw distance refers to the maximum distance at which the flashlight can effectively illuminate an object or target. The stated throw distance typically indicates the point at which the brightness falls below a specified threshold, such as 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.


Modes2 modes
Mode memoryno
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences.


Batteryintegrated Li-Ion battery
Battery indicatorno
Charger portmicroUSB
Thermal regulationno

The Olight I1R 2 EOS flashlight is powered by integrated Li-Ion battery. The I1R 2 EOS flashlight can be charged directly from a USB power source, such as a wall adapter, computer, power bank, or car charger. This allows for convenient and versatile charging options, as you can utilize various USB power sources to recharge the flashlight's internal battery. 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.

This light does not have temperature control feature. The I1R 2 EOS flashlight with IPx8 rating can withstand being submerged in water beyond 1 meter for a prolonged period, typically specified by the manufacturer.


Package contentskey ring

The performance of the Olight I1R 2 EOS 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.

Olight I1R 2 EOS (I1R2EOS) comparisons

According to our statistics, the Olight I1R 2 EOS flashlight was most often compared on our site with the following flashlights.

Olight Arkfeld (ARKFELD) Olight Arkfeld Olight Seeker 2 Pro (SEEKER2PRO) Olight Seeker 2 Pro Olight Seeker 2 (SEEKER2) Olight Seeker 2 Olight I3E EOS (I3EEOS) Olight I3E EOS Olight M2R Pro Warrior (M2RPRO) Olight M2R Pro Warrior Olight Baton 3 Pro NW (BATON3PRONW) Olight Baton 3 Pro NW Olight Warrior X 3 (WARX3) Olight Warrior X 3 Olight Baton 3 Pro CW (BATON3PROCW) Olight Baton 3 Pro CW

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