Olight I5T EOS (2020) review

Osram P9 LED
300 lm output
910 cd intensity
1 x AA battery

The Olight I5T EOS (I5TEOS) released in 2020. It uses Osram P9 LED, TIR reflector and 1 x AA battery. The powerful emitter in this flashlight provides up to 300 lm output, 910 cd intensity, and a beam distance of 60 m.

It uses a TIR lens to form the beam pattern. This light has 2 modes of lighting. This light does not have memory function.

Table of contents:

Olight I5T EOS (I5TEOS) specifications

Rated 3/5 based on 1041 user votes.


Weight6 g
Length95 mm
Body diameter17.8 mm
Head diameter17.8 mm
Materialaluminium alloy
desert tan


The emitter of I5T EOS manufactured by Osram, a German lighting manufacturer. 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.

EmitterOsram P9 LED
Color temperature6500 K
Switchmechanical rear


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.

Flux300 lm
Intensity910 cd
Throw60 m
CD/LM factor3.03


Modes2 modes
Mode memoryno
Ramping modeno


The I5T EOS cannot charge batteries directly. You may need an external charger to keep your battery going. A protected battery is recommended as the light itself does not have low voltage protection (LVP). This light does not have temperature control feature.

Battery1 x AA battery
Battery indicatorno
Charger portno
Thermal regulationno


It comes with a battery. The battery must be fully charged before you first use your I5T EOS. The clip is useful to keep the light secured in your pocket.

Package contentsAA battery

The performance of the Olight I5T 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.

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 Olight I5T EOS, then don’t hesite and signal the problem to us.

Olight I5T EOS (I5TEOS) pictures

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Olight I5T EOS / I5TEOS

Olight I5T EOS (I5TEOS) comparisons

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