Acebeam TK16 AL SST20 flashlight review

3 x Luminus SST20 LEDs
1250 lm output
3570 cd intensity
1 x 16340 Li-Ion battery

The Acebeam TK16 AL SST20 flashlight was released in 2019. It uses 3 x Luminus SST20 LEDs, TIR reflector and 1 x 16340 Li-Ion battery. The powerful emitter in this flashlight provides up to 1250 lm output, 3570 cd intensity, and a beam distance of 119 m.

Want to find out if the Acebeam TK16 AL SST20 is good? Keep reading to know!

Table of Contents

  • Acebeam TK16 AL SST20 specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
  • 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. If you found an error or something lacking in the specifications for the Acebeam TK16 AL SST20, then tell us.

Acebeam TK16 AL SST20 / TK16ALSST20

The TK16 AL SST20 flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations. TIR lens plays a significant role in shaping the beam pattern of the TK16 AL SST20 flashlight. This light has 5 modes of lighting. With mode memory, when you turn off the TK16 AL SST20 and then turn it back on, it will activate the last used mode. The strobe function produces a high-frequency flashing light pattern. It disorients or distracts potential threats or aggressors.

Acebeam TK16 AL SST20 specifications

NameTK16 AL SST20
Rated 3 / 5 based on 1464 user votes.

This Acebeam flashlight offers portability, versatility, and reliability in providing illumination.

Acebeam TK16 AL SST20 / 2

Body, materials, weight, colors

Weight37.3 g
Length66.5 mm
Body diameter22 mm
Head diameter23 mm
Materialaluminium alloy with HAIII hard-anodized finish

An extremely lightweight handheld flashlight weighs 37.3 g. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. Aluminium is a lightweight material, which is beneficial for TK16 AL SST20 flashlight. The HAIII coating is uniform and attractive. It is often available in different colors, giving the flashlight a sleek, pro look. This flashlight comes in a sleek black color option.

Acebeam TK16 AL SST20 / 4

System, LED, lens, reflector

Emitter3 x Luminus SST20 LEDs
Color temperature4000 K
Switchmechanical rear

People know Luminus LEDs for their efficiency, brightness, color accuracy, and long lifespan. The color temperature choice depends on the light's use and personal taste. The TK16 AL SST20's TIR lens is made of a single piece of transparent material. This material is typically acrylic or polycarbonate. Mechanical switches often offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. The rear switch is at the end of the TK16 AL SST20 flashlight. It helps you hold it securely.

Acebeam TK16 AL SST20 / 1

Performance, flux, intensity, throw

Flux1250 lm
Intensity3570 cd
Throw119 m
CD/LM factor2.86

The 1250 lm output of TK16 AL SST20 provides great flexibility. You can adjust the brightness to fit different needs. The TK16 AL SST20 flashlight has 3570 cd. It provides a much brighter and more intense beam. 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. In some cases, a flashlight with a higher CRI may offer a more natural. It may also be more pleasant to use, it can better reveal the true colors of the surroundings. The flashlight has a CRI of 95. It can show colors with exceptional accuracy, and it also captures subtle details.

Acebeam TK16 AL SST20 / 3

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again. Designers created the strobe function to produce a disorienting or attention-grabbing effect.

Features, battery, protections

Battery1 x 16340 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes

The TK16 AL SST20 flashlight utilizes 1 x 16340 Li-Ion battery as its power source. The TK16 AL SST20 doesn't have charger port. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage. The TK16 AL SST20 has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this.

Accessories, package contents

Package contents16340 battery
2 x spare o-rings
spare rubber cover

The included battery is picked by the manufacturer. It is picked for the best compatibility and performance with the TK16 AL SST20 flashlight. The clip allows you to attach this flashlight to a belt, pocket, backpack, or other items. This enables convenient hands-free carry. Instead of searching for matching O-rings, having spare O-rings allows quick fixes.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the TK16 AL SST20 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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
  • battery included
  • clip


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


Acebeam TK16 AL SST20 / TK16ALSST20 photo 1.
Acebeam TK16 AL SST20 / TK16ALSST20 photo 2.
Acebeam TK16 AL SST20 / TK16ALSST20 photo 3.
Acebeam TK16 AL SST20 / TK16ALSST20 photo 4.
Acebeam TK16 AL SST20 / TK16ALSST20 photo 5.
Acebeam TK16 AL SST20 / TK16ALSST20

Acebeam TK16 AL SST20 comparisons

According to our statistics, the Acebeam TK16 AL SST20 flashlight was most often compared on our site with the following flashlights.

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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.