Acebeam TK17 TI Osram 1500lm In-depth review, Pros and Cons

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

The Acebeam TK17 TI Osram (TK17TIO) 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.

The TK17 TI Osram is an impressive flashlight that offers both power and reliability. Its robust build and outstanding illumination make it a versatile lighting instrument. It uses a TIR lens to form the beam pattern. This light has 5 modes of lighting. Instead of having to cycle through multiple modes to find the desired setting, mode memory of TK17 TI Osram ensures that the flashlight starts in the mode you prefer or need.

Acebeam TK17 TI Osram (TK17TIO) pictures

Acebeam TK17 TI Osram / TK17TIO photo
Acebeam TK17 TI Osram / TK17TIO photo
Acebeam TK17 TI Osram / TK17TIO photo
Acebeam TK17 TI Osram / TK17TIO

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 Acebeam TK17 TI Osram, then don’t hesite and signal the problem to us.

Acebeam TK17 TI Osram (TK17TIO) specifications

NameTK17 TI Osram
Rated 3/5 based on 1193 user votes.

The TK17 TI Osram flashlight enhances safety by illuminating potential hazards and improving visibility in low-light conditions.


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

This 80.5 g flashlight would generally be considered lightweight and easy to handle for most people. The length of a flashlight can affect how it feels in your hand and how you can grip and maneuver it. A longer flashlight may provide a more substantial grip, making it easier to hold and control, especially if you have larger hands. The TK17 TI Osram flashlight is available in titanium.


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

Osram LEDs are known for their high performance, energy efficiency, and reliability. They provide a range of options in terms of brightness, color temperature, color rendering, and beam characteristics to meet different lighting requirements. The choice of color temperature depends on the specific lighting application and personal preferences. 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.

The TK17 TI Osram has electronic switch. Some flashlights with electronic switches have programmable features that allow users to customize the behavior of the flashlight. This may include setting specific modes, configuring brightness levels, or enabling unique functions according to individual preferences. With a rear switch of TK17 TI Osram flashlight, the operation of the flashlight is often straightforward and easy to grasp. A simple press or click of the rear switch turns the flashlight on or off, eliminating the need for complex button combinations or multi-step processes.


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. This higher output can be advantageous in various situations where you require enhanced visibility or need to illuminate larger areas. The TK17 TI Osram flashlight with 21000 cd has an extended throw distance, allowing you to illuminate objects or areas at greater distances. This can be advantageous for outdoor activities, search and rescue operations, or scenarios where long-range visibility is required.

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.


Modes5 modes
Mode memoryyes
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The TK17 TI Osram has mode memory. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again.


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 directly. You may need an external charger to keep your battery going. LVP (Low Voltage Protection) is designed to protect the battery from being over-discharged, which can lead to reduced battery life or even permanent damage. The built-in thermal control automatically adjusts brightness output to prevent overheating. The "8" in the IPx8 rating indicates the highest level of protection against water ingress.


Package contents18350 battery with microUSB
2 x spare o-rings
microUSB cable

With an included battery you can immediately use the flashlight for your desired applications, saving time and allowing you to focus on your tasks or activities. With a clip, you can securely fasten the flashlight to a reachable location, ensuring it is easily accessible whenever you need it. Having spare O-rings allows you to replace them as needed, ensuring that the flashlight maintains its water-tight seal and remains protected from moisture or water ingress.

The performance of the Acebeam TK17 TI Osram 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.

Acebeam TK17 TI Osram (TK17TIO) comparisons

According to our statistics, the Acebeam TK17 TI Osram flashlight was most often compared on our site with the following flashlights.

Acebeam TK16 AL SST20 (TK16ALSST20) Acebeam TK16 AL SST20 Acebeam K65 (K65) Acebeam K65 Acebeam T28 (T28) Acebeam T28 Acebeam TK18 AL Samsung (TK18ALS) Acebeam TK18 AL Samsung Acebeam H15 (H15) Acebeam H15 Acebeam X80 GT (X80GT) Acebeam X80 GT Acebeam K30 (K30) Acebeam K30 Acebeam X10 (X10) Acebeam X10

If there’s information about the Acebeam TK17 TI Osram that you would like to see on this site, then write to us.

FlashlightChart.com / Flashlights / Acebeam / Acebeam TK17 TI Osram (2020)