Acebeam M50 Osram flashlight review

120 lm output
1300 cd intensity
integrated 10150 Li-Ion battery

The Acebeam M50 Osram flashlight was released in 2019. It uses Osram KW CSLNM1.TG LED, TIR reflector and integrated 10150 Li-Ion battery. The powerful emitter in this flashlight provides up to 120 lm output, 1300 cd intensity, and a beam distance of 72 m.

Wondering if this Acebeam flashlight is a must-have? Keep reading to find out!

Table of Contents

  • Acebeam M50 Osram 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.

Acebeam M50 Osram / M50O

The flashlight is a must-have tool for outdoor activities, it offers guidance and safety. TIR lens plays a significant role in shaping the beam pattern of the M50 Osram flashlight. This light has 2 modes of lighting. Without mode memory, each time you turn on the M50 Osram, it will start from the first mode in the sequence. This USB rechargeable flashlight has become popular.

Acebeam M50 Osram specifications

NameM50 Osram
Rated 4 / 5 based on 1489 user votes.

Flashlights let you navigate in the dark. They help you find supplies and signal for help.

Acebeam M50 Osram / 2

Body, materials, weight, colors

Weight11 g
Length43.3 mm
Head diameter13.9 mm
Materialaluminium alloy with HAIII hard-anodized finish

An extremely lightweight handheld flashlight weighs 11 g. Consider the length of the flashlight, it should fit comfortably in your chosen way to carry it. Aluminium is a lightweight material, which is beneficial for M50 Osram flashlight. The HAIII coating is often matte or textured. This flashlight comes in a sleek black color option.

Acebeam M50 Osram / 1

System, LED, lens, reflector

EmitterOsram KW CSLNM1.TG LED
Color temperature6500 K

We know Osram LEDs for their high performance, energy efficiency, and reliability. The color temperature choice depends on the light's use and personal taste. The M50 Osram's TIR lens is made of a single piece of transparent material.

Acebeam M50 Osram / 3

Performance, flux, intensity, throw

Flux120 lm
Intensity1300 cd
Throw72 m
CD/LM factor10.83

You mainly need a flashlight for basic tasks like finding keys or navigating in dimly lit areas, 120 lm can be enough. 1300 cd can make things quite bright. It's enough for many everyday tasks. The throw distance is the farthest distance the flashlight can light an object. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.

Software, user interface, modes

Modes2 modes
Mode memoryno
Ramping modeno

A flashlight's modes are different output settings or brightness levels.

Features, battery, protections

Batteryintegrated 10150 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
Thermal regulationno

The M50 Osram flashlight utilizes integrated 10150 Li-Ion battery as its power source. The battery indicator prevents surprise power failures. USB rechargeable flashlights are more popular now. LVP (Low Voltage Protection) is designed to protect the battery. This flashlight doesn't have built-in temperature control. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period.

Accessories, package contents

Package contents2 x spare o-rings
microUSB cable

Instead of searching for matching O-rings, having spare O-rings allows quick fixes.

Official sitehttps://www.acebeam.com/

Conclusion, pros and cons

This Acebeam 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
  • TIR lens
  • multiple modes
  • integrated battery
  • battery indicator
  • USB charger
  • low-voltage protection
  • waterproof


  • cool light
  • moderated performance
  • low intensity
  • no mode memory
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic


Acebeam M50 Osram / M50O photo 1.
Acebeam M50 Osram / M50O photo 2.
Acebeam M50 Osram / M50O photo 3.
Acebeam M50 Osram / M50O photo 4.
Acebeam M50 Osram / M50O


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Updated: April 28, 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.