Acebeam TK18 AL Nichia flashlight review

3 x Nichia 219C LEDs
1650 lm output
9160 cd intensity
1 x 18650 Li-Ion battery

The Acebeam TK18 AL Nichia flashlight was released in 2019. It uses 3 x Nichia 219C LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1650 lm output, 9160 cd intensity, and a beam distance of 191 m.

Curious to see if this flashlight impresses? Read on!

Table of Contents

  • Acebeam TK18 AL Nichia 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 TK18 AL Nichia / TK18ALN

The TK18 AL Nichia flashlight offers a versatile lighting solution. It uses a TIR lens to form the beam pattern. This light has 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available.

Acebeam TK18 AL Nichia specifications

NameTK18 AL Nichia
Rated 3 / 5 based on 1469 user votes.

The TK18 AL Nichia flashlight enhances safety.

Acebeam TK18 AL Nichia / 1

Body, materials, weight, colors

Weight58 g
Length105 mm
Body diameter23 mm
Head diameter25.5 mm
Materialaluminium alloy with HAIII hard-anodized finish

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 aluminium body of the TK18 AL Nichia has a reputation for being durable and strong. The body of TK18 AL Nichia flashlight treated with a Type III hard-anodized, anti-abrasive finish. The TK18 AL Nichia flashlight is available in black.

Acebeam TK18 AL Nichia / 2

System, LED, lens, reflector

Emitter3 x Nichia 219C LEDs
Color temperature4000 K
Switchmechanical rear

The emitter of TK18 AL Nichia manufactured by Nichia, a Japanese LED manufacturer. Color temperature is used to quantify the color appearance of light sources. The TIR lens makes the LED light collimated. These beams maximize the usable lumens in the target area. Mechanical switches are usually robust. The rear switch of the TK18 AL Nichia is usually operated with the thumb or finger.

Acebeam TK18 AL Nichia / 3

Performance, flux, intensity, throw

Flux1650 lm
Intensity9160 cd
Throw191 m
CD/LM factor5.55

With 1650 lm, the TK18 AL Nichia flashlight will offer a brighter and more powerful beam of light. The TK18 AL Nichia flashlight has 9160 cd, it provides a much brighter and more intense beam. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is. A flashlight with a higher CRI can show colors more accurately. A CRI of 95 indicates extremely high color accuracy. It provides a near-perfect representation of colors.

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. The TK18 AL Nichia flashlight has a strobe function, it produces a rapid, repetitive flashing of light.

Features, battery, protections

Battery1 x 18650 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes

The Acebeam TK18 AL Nichia flashlight is powered by 1 x 18650 Li-Ion battery. The TK18 AL Nichia 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 contents2 x spare o-rings
spare rubber cover

The clip is useful to keep the light secured in your pocket. When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. Replacing worn or damaged O-rings helps a lot.

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
  • warm light
  • TIR lens
  • tactical switch
  • adequate performance
  • superior CRI
  • multiple modes
  • mode memory
  • tactical strobe
  • low-voltage protection
  • thermal regulation
  • waterproof
  • clip


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


Acebeam TK18 AL Nichia / TK18ALN photo 1.
Acebeam TK18 AL Nichia / TK18ALN photo 2.
Acebeam TK18 AL Nichia / TK18ALN photo 3.
Acebeam TK18 AL Nichia / TK18ALN photo 4.
Acebeam TK18 AL Nichia / TK18ALN


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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.