Olight Seeker 3 Pro flashlight review

4 x unspecified CW LEDs
4200 lm output
15625 cd intensity
1 x special 21700 Li-Ion battery

The Olight Seeker 3 Pro flashlight was released in 2021. It uses 4 x unspecified CW LEDs, TIR reflector and 1 x special 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4200 lm output, 15625 cd intensity, and a beam distance of 250 m.

Wondering if this flashlight is a hit? Stay tuned!

Table of Contents

  • Olight Seeker 3 Pro specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
  • Conclusion, pros and cons
  • Photos

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. If you found an error or something lacking in the specifications for the Olight Seeker 3 Pro, then tell us.

Olight Seeker 3 Pro / SEEKER3PRO

The Seeker 3 Pro flashlight is an essential tools for emergency preparedness. In disasters or blackouts, when electricity is unavailable, a flashlight is crucial. It helps you navigate dark areas. TIR technology minimizes hotspots, dark spots, and irregularities in the beam of Seeker 3 Pro. This light has 5 modes of lighting. You don't have to cycle through many modes to find what you want. The Seeker 3 Pro's mode memory makes the flashlight start in your preferred or needed mode.

The strobe function produces a high-frequency flashing light pattern. It disorients or distracts potential threats or aggressors. This Olight USB rechargeable flashlight comes with versatile charging options.

Olight Seeker 3 Pro specifications

NameSeeker 3 Pro
Rated 3 / 5 based on 1119 user votes.

The Seeker 3 Pro flashlight allows you to light dark areas. It helps you find hazards or stop threats by shining light on them.

Olight Seeker 3 Pro / 5

Body, materials, weight, colors

Weight200 g
Length132 mm
Body diameter28 mm
Head diameter35 mm
Materialaluminium alloy with HAIII hard-anodized finish
desert tan

The flashlight weighs 200 g. It is generally comfortable to hold for a long time, and it is also easy to carry in pockets or bags. Consider the length of the flashlight. It should fit comfortably in your chosen way to carry it. The aluminium body of the Seeker 3 Pro has excellent thermal conductivity. This means it can effectively dissipate heat generated by the flashlight's components. The HAIII process makes a hard and wear-resistant surface on the aluminum. This makes it more resistant to scratches, abrasions, and impacts. The Seeker 3 Pro flashlight presents an extensive selection of vibrant colors: black, blue, desert tan, orange.

Olight Seeker 3 Pro / 1

System, LED, lens, reflector

Emitter4 x unspecified CW LEDs
Color temperature6500 K
Switchelectronic side

The color temperature choice depends on the light's use and personal taste. The TIR lens of the Seeker 3 Pro can reduce light loss. To achieve high light output, it captures and redirects much of the emitted light. Some flashlights with electronic switches have programmable features. They allow users to customize the behavior of the flashlight.

Olight Seeker 3 Pro / 3

Performance, flux, intensity, throw

Flux4200 lm
Intensity15625 cd
Throw250 m
CD/LM factor3.72

The Seeker 3 Pro flashlight has 4200 lm. It will provide an exceptionally bright and powerful beam of light. The Seeker 3 Pro flashlight has 15625 cd. It can light objects at greater distances. The throw is the 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.

Olight Seeker 3 Pro / 2

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again. Strobe mode on Seeker 3 Pro flashlight produces a rapid, repeated flashing of light.

Olight Seeker 3 Pro / 4

Features, battery, protections

Battery1 x special 21700 Li-Ion battery
Battery indicatoryes
Charger portmagnetic USB
Thermal regulationyes
Specialsproximity sensor

The Seeker 3 Pro flashlight utilizes 1 x special 21700 Li-Ion battery as its power source. A battery indicator is a feature. It shows the remaining power level of the flashlight's battery. The Seeker 3 Pro flashlight can charge from a USB power source. This source can be a wall adapter, computer, power bank, or car charger. Use a protected battery. This flashlight lacks low voltage protection (LVP). The Seeker 3 Pro has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates. The "8" in the IPx8 rating means the highest level of protection. It is against water ingress.

Olight Seeker 3 Pro / 6

Accessories, package contents

Package contentsMCC3 magnetic USB charger cable
nylon holster
special 21700 battery

The included battery lets you immediately use the flashlight for your desired applications. It saves time and allows you to focus on your tasks or activities. The holster keeps your flashlight secure. It provides a reliable and easy way to do this when not in use.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the Seeker 3 Pro flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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
  • TIR lens
  • side switch
  • strong flux
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • thermal regulation
  • waterproof
  • battery included
  • protective holster


  • unspecified LED
  • cool light
  • no LVP
  • no auxiliary LEDs
  • non-magnetic


Olight Seeker 3 Pro / SEEKER3PRO photo 1.
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Olight Seeker 3 Pro / SEEKER3PRO photo 4.
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Olight Seeker 3 Pro / SEEKER3PRO

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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.
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