Acebeam TK17 TI Osram flashlight review

3 x Osram KW CSLNM1.TG LEDs
1500 lm output
21000 cd intensity
1 x 18350 Li-Ion battery

The Acebeam TK17 TI Osram flashlight was released in 2020. It uses 3 x Osram KW CSLNM1.TG LEDs, TIR reflector and 1 x 18350 Li-Ion battery. The powerful emitter in this flashlight provides up to 1500 lm output, 21000 cd intensity, and a beam distance of 290 m.

Curious if this Acebeam flashlight is great? Keep reading to find out!

Table of Contents

  • Acebeam TK17 TI 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 TK17 TI Osram / TK17TIO

The TK17 TI Osram flashlight is an essential tools for emergency preparedness. It uses a TIR lens to form the beam pattern. This light has 5 modes of lighting. The TK17 TI Osram's mode memory makes the flashlight start in your preferred or needed mode.

Acebeam TK17 TI Osram specifications

NameTK17 TI Osram
Rated 4 / 5 based on 1464 user votes.

This Acebeam flashlight offers portability, versatility, and reliability.

Acebeam TK17 TI Osram / 1

Body, materials, weight, colors

Weight80.5 g
Length82.8 mm
Body diameter21 mm
Head diameter25.4 mm

The flashlight is lightweight and easy to handle for most people. A smaller flashlight is easier to carry in a pocket, bag, or pouch. The TK17 TI Osram flashlight is available in titanium.

Acebeam TK17 TI Osram / 2

System, LED, lens, reflector

Emitter3 x Osram KW CSLNM1.TG LEDs
Color temperature6500 K
Switchelectronic rear

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 TIR lens makes the LED light collimated. These beams maximize the usable lumens in the target area. Some flashlights with electronic switches have programmable features. Rear switches are common on tactical flashlights.

Performance, flux, intensity, throw

Flux1500 lm
Intensity21000 cd
Throw290 m
CD/LM factor14

With 1500 lm, the TK17 TI Osram flashlight will offer a brighter and more powerful beam of light. The TK17 TI Osram flashlight has 21000 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.

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.

Features, battery, protections

Battery1 x 18350 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes

The TK17 TI Osram flashlight utilizes 1 x 18350 Li-Ion battery as its power source. The TK17 TI Osram cannot charge batteries. You may need an external charger to keep your battery going. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge. 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 contents18350 battery with microUSB
2 x spare o-rings
microUSB cable

The included battery lets you immediately use the flashlight for your desired applications. The clip provides flexibility in how you carry your flashlight. 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
  • TIR lens
  • tactical switch
  • adequate performance
  • super bright
  • multiple modes
  • mode memory
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • clip


  • cool light
  • no battery indicator
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic


Acebeam TK17 TI Osram / TK17TIO photo 1.
Acebeam TK17 TI Osram / TK17TIO photo 2.
Acebeam TK17 TI Osram / TK17TIO photo 3.
Acebeam TK17 TI Osram / TK17TIO


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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.