Olight Seeker 4 Pro flashlight review

4 x Osram P9 LEDs
4600 lm output
16895 cd intensity
1 x special 21700 Li-Ion battery

The Olight Seeker 4 Pro flashlight was released in 2023. It uses 4 x Osram P9 LEDs, TIR reflector and 1 x special 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4600 lm output, 16895 cd intensity, and a beam distance of 260 m.

Excited to learn if the Seeker 4 Pro lives up to expectations? Read on!

Table of Contents

  • Olight Seeker 4 Pro 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 Seeker 4 Pro / SEEKER4PRO

The flashlight is a must-have tool for outdoor activities, it offers guidance and safety. TIR technology minimizes hotspots, dark spots, and irregularities in the beam of Seeker 4 Pro. This light has 5 modes of lighting. The Seeker 4 Pro mode memory eliminates the need to cycle through modes. It provides convenience and saves time. You can use the strobe function as a self-defense tool. This Olight USB rechargeable flashlight comes with versatile charging options.

Olight Seeker 4 Pro specifications

NameSeeker 4 Pro
Rated 4 / 5 based on 133 user votes.

A flashlight provides reassurance and confidence.

Olight Seeker 4 Pro / 3

Body, materials, weight, colors

Weight205 g
Length133 mm
Body diameter28 mm
Head diameter35 mm
Materialaluminium alloy with HAIII hard-anodized finish

The heavier flashlight may be tiring to hold for a long time. The length of a flashlight can affect how it feels in your hand and how you can grip it. The aluminium body of the Seeker 4 Pro has excellent thermal conductivity. Flashlight makers widely use HAIII coating. Factors can influence the color choice of the flashlight body.

Olight Seeker 4 Pro / 4

System, LED, lens, reflector

Emitter4 x Osram P9 LEDs
Color temperature4500 K, 6500 K
Switchelectronic rotary side

Osram has a reputation for producing LEDs that deliver consistent quality and durability. Warm, white light is generally more comfortable. The TIR lens of the Seeker 4 Pro can reduce light loss, it captures and redirects much of the emitted light. The electronic switches may have a higher chance of standby drain.

Olight Seeker 4 Pro / 1

Performance, flux, intensity, throw

Flux4600 lm
Intensity16895 cd
Throw260 m
CD/LM factor3.67

The Seeker 4 Pro flashlight has 4600 lm. It will provide an exceptionally bright and powerful beam of light. The Seeker 4 Pro flashlight has 16895 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. Candela per lumen (cd/lm) measures a flashlight's beam intensity.

Olight Seeker 4 Pro / 2

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. Designers created the strobe function to produce a disorienting or attention-grabbing effect.

Features, battery, protections

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

The Seeker 4 Pro flashlight's power source is 1 x special 21700 Li-Ion battery. The battery indicator prevents surprise power failures. USB rechargeable flashlights are more popular now. The flashlight detects when the battery's voltage has dropped to a certain level. The built-in thermal control adjusts brightness output to prevent overheating. The "8" in the IPx8 rating means the highest level of protection.

Accessories, package contents

Package contentsMCC3 2A magnetic USB charger cable
plastic holster
special 21700 battery

By including a battery with the flashlight, you avoid the extra expense. The holster keeps your flashlight secure. The lanyard of the Seeker 4 Pro protects the flashlight from accidental damage.

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
  • side switch
  • rotary switch
  • strong flux
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • protective holster


  • no auxiliary LEDs
  • non-magnetic


Olight Seeker 4 Pro / SEEKER4PRO photo 1.
Olight Seeker 4 Pro / SEEKER4PRO photo 2.
Olight Seeker 4 Pro / SEEKER4PRO photo 3.
Olight Seeker 4 Pro / SEEKER4PRO photo 4.
Olight Seeker 4 Pro / SEEKER4PRO photo 5.
Olight Seeker 4 Pro / SEEKER4PRO


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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.