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Acebeam

Acebeam T21 flashlight review

Cree XP-L HI LED
1500 lm output
275500 cd intensity
2 x 18650 Li-Ion batteries

The Acebeam T21 flashlight was released in 2018. It uses Cree XP-L HI LED, SMO reflector and 2 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 1500 lm output, 275500 cd intensity, and a beam distance of 1050 m.

Wondering if this Acebeam flashlight is awesome? Stick around until the end of our article!

Table of Contents

  • Acebeam T21 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 T21 / T21

The T21 flashlight is an essential tools for emergency preparedness. This light has 5 modes of lighting. The T21's mode memory makes the flashlight start in your preferred or needed mode. The strobe function produces a high-frequency flashing light pattern.

Acebeam T21 specifications

BrandAcebeam
NameT21
TypeT21
Rating
Rated 4 / 5 based on 1492 user votes.
Launch2018
Formflashlight

This Acebeam flashlight is compact and handheld.

Acebeam T21 / 1

Body, materials, weight, colors

Weight286 g
Length251 mm
Body diameter25.4 mm
Head diameter70 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

This 286 g flashlight is heavier than the average handheld flashlight. A smaller flashlight is easier to carry in a pocket, bag, or pouch. Aluminium is a lightweight material, which is beneficial for T21 flashlight. The HAIII process makes a hard and wear-resistant surface on the aluminum. The T21 flashlight is available in black.

Acebeam T21 / 2

System, LED, lens, reflector

EmitterCree XP-L HI LED
Color temperature6500 K
ReflectorSMO
Lenstoughtened AR coated glass
Switchelectronic side, mechanical rear

Lighting professionals trust Cree LEDs. Cree LEDs have gained a strong reputation for quality and performance. The color temperature choice depends on the light's use and personal taste. The smooth reflector creates a well-defined hotspot at the center. The AR coating is thin and applied to the lens surface. The T21 flashlight has multiple switch options. Some flashlights with electronic switches have programmable features.

Mechanical switches are usually robust. The rear switch allows for quick and easy momentary or constant-on activation.

Performance, flux, intensity, throw

Flux1500 lm
Intensity275500 cd
Throw1050 m
CD/LM factor183.67

With 1500 lm, the T21 flashlight will offer a brighter and more powerful beam of light. The Acebeam flashlight has 275500 cd. 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
Strobeyes
SOS/Beaconno

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. You can use Strobe for signaling purposes. It can also be used for self-defense or to attract attention in emergency situations.

Features, battery, protections

Battery2 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portno
LVPyes
Thermal regulationyes
ProtectionIPx8
AUX LEDsno
Magneticno

The T21 flashlight utilizes 2 x 18650 Li-Ion batteries as its power source. The battery indicator helps users check the battery status. The T21 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
lanyard
nylon holster
spare rubber cover

The package includes a holster to safely store your flashlight. Securing the flashlight with a lanyard frees up your hands for other tasks. 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.

Pros

  • aluminium body
  • AR coated lens
  • side switch
  • tactical switch
  • adequate performance
  • extremely bright
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • waterproof
  • protective holster

Cons

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

Photos

Acebeam T21 / T21 photo 1.
Acebeam T21 / T21 photo 2.
Acebeam T21 / T21 photo 3.
Acebeam T21 / T21

Comparisons

According to our statistics, the Acebeam T21 flashlight was most often compared on our site with the following flashlights.

If there’s information about the Acebeam T21 that you would like to see on this site, then write to us.

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.