Olight I3E EOS 90lm In-depth review, Pros and Cons

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

The Olight I3E EOS (I3EEOS) 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.

The I3E EOS flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations or when you need instant visibility. It uses a TIR lens to form the beam pattern. This flashlight does not have memory function.

Olight I3E EOS (I3EEOS) pictures

Olight I3E EOS / I3EEOS photo
Olight I3E EOS / I3EEOS photo
Olight I3E EOS / I3EEOS photo
Olight I3E EOS / I3EEOS

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 I3E EOS, then don’t hesite and signal the problem to us.

Olight I3E EOS (I3EEOS) specifications

Rated 4/5 based on 1221 user votes.

The I3E EOS flashlight enhances safety by illuminating potential hazards and improving visibility in low-light conditions.


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

This 19.4 g flashlight would generally be considered lightweight and easy to handle for most people. The length of the I3E EOS flashlight can affect its portability. A shorter flashlight is generally easier to carry in a pocket, bag, or pouch, making it more convenient for everyday use or when you're on the go. Aluminium body of I3E EOS is known for its durability and strength. It offers excellent resistance to impacts, scratches, and corrosion, making it suitable for rugged outdoor use or in demanding environments. The choice of flashlight body color can be influenced by factors such as intended use, environment, personal style, and functional requirements.


EmitterPhilips Luxeon TX LED
Color temperature5000 K
Switchno switch

Warm white light is generally considered more comfortable and less harsh on the eyes compared to cool white light. 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.


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, it may not be sufficient for certain scenarios or individuals with specific requirements. 500 cd can provide a reasonable level of luminous intensity for many everyday lighting tasks. The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor (candela-to-lumen ratio) provides information about how concentrated or focused the light output of a light source is. A higher cd/lm ratio indicates that the light is more concentrated in a specific direction, while a lower ratio indicates a more diffused or spread-out light output.


Modes1 mode
Mode memoryno
Ramping modeno


Battery1 x AAA battery
Battery indicatorno
Charger portno
Thermal regulationno

The power source of the I3E EOS flashlight is 1 x AAA battery, providing reliable and long-lasting energy for optimal performance. The I3E 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). Flashlights without thermal protection may be more susceptible to overheating under extreme conditions, such as prolonged high-output use or exposure to high ambient temperatures. The "8" in the IPx8 rating indicates the highest level of protection against water ingress.


Package contentsAAA battery

By including a battery with the flashlight, you avoid the additional expense of purchasing a battery separately.

The performance of the Olight I3E 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 I3E EOS (I3EEOS) comparisons

According to our statistics, the Olight I3E EOS flashlight was most often compared on our site with the following flashlights.

Olight X7R Marauder (X7RM) Olight X7R Marauder Olight Perun Mini (PERUNM) Olight Perun Mini Olight Seeker 3 Pro (SEEKER3PRO) Olight Seeker 3 Pro Olight Baton 3 Pro Max (BATON3PROMAX) Olight Baton 3 Pro Max Olight I3T EOS (I3TEOS) Olight I3T EOS Olight Warrior X 3 (WARX3) Olight Warrior X 3 Olight Perun (PERUN) Olight Perun Olight Javelot Pro (JAVPRO) Olight Javelot Pro

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