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Nitecore MT21A flashlight review

1 x Cree XP-E2 R2 LED
260 lm output
10000 cd intensity
2 x AA batteries

The Nitecore MT21A flashlight was released in 2013. It uses 1 x Cree XP-E2 R2 LED, SMO reflector and 2 x AA batteries. The powerful emitter in this flashlight provides up to 260 lm output, 10000 cd intensity, and a beam distance of 200 m.

Curious if this Nitecore flashlight is a real gem? Keep following along!

Table of Contents

  • Nitecore MT21A 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

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 Nitecore MT21A, then tell us.

Nitecore MT21A / MT21A

The MT21A flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations. This light has 4 modes of lighting. The lack of mode memory means you need to adjust the flashlight's settings each time you turn it on. It has a strobe function, which is one of the most effective self defense tools available.

Nitecore MT21A specifications

BrandNitecore
NameMT21A
TypeMT21A
Rating
Rated 3 / 5 based on 1429 user votes.
Launch2013
Formflashlight

Flashlights are unlike ambient or overhead lights. They let you aim the light where you need it.

Body, materials, weight, colors

Weight68 g
Length155 mm
Body diameter21.5 mm
Head diameter25.4 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The MT21A is small, compact, and designed for ultra-portability. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. The aluminium body of the MT21A has excellent thermal conductivity. This means it can effectively dissipate heat generated by the flashlight's components. The HAIII coating is uniform and attractive. It is often available in different colors, giving the flashlight a sleek, pro look. The MT21A flashlight comes in a stylish black color.

System, LED, lens, reflector

Emitter1 x Cree XP-E2 R2 LED
Color temperature6500 K
ReflectorSMO
Lenstoughtened AR coated glass
Switchmechanical rear

Cree is a US-based LED manufacturer. It is well-regarded for its high-quality products and innovation in lighting. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. The MT21A has a smooth reflector. The right reflector focuses light well. It gives you a better hotspot, and it throws better. The AR coating reduces the loss of light due to reflections, allowing more light to pass through the lens.

Mechanical switches are usually robust. They resist wear and tear and work in many environments. The rear switch is at the end of the MT21A flashlight. It helps you hold it securely.

Performance, flux, intensity, throw

Flux260 lm
Intensity10000 cd
Throw200 m
CD/LM factor38.46

260 lm can provide a decent amount of brightness and be suitable for many everyday tasks. The MT21A flashlight has 10000 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.

Software, user interface, modes

Modes4 modes
Mode memoryno
Ramping modeno
Strobeyes
SOS/Beaconyes

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The MT21A flashlight has a strobe function. It produces a rapid, repetitive flashing of light. The SOS signal is commonly used in outdoor adventures or survival scenarios.

Features, battery, protections

Battery2 x AA batteries
Battery indicatorno
Charger portno
LVPno
Thermal regulationno
ProtectionIPx8
AUX LEDsno
Magneticno

The Nitecore MT21A flashlight is powered by 2 x AA batteries. The MT21A cannot charge batteries. You may need an external charger to keep your battery going. Use a protected battery. This flashlight lacks low voltage protection (LVP). Flashlights without thermal protection may rely on other design elements to dissipate heat. These elements include heat sinks, fins, or body materials with good thermal conductivity. The "8" in the IPx8 rating means the highest level of protection. It is against water ingress.

Accessories, package contents

Package contentslanyard
spare o-ring
spare rubber cover

When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. It also gives a more stable hold. Replacing worn or damaged O-rings helps a lot. It keeps up the flashlight's durability and performance.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the MT21A 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 Nitecore 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

  • lightweight
  • aluminium body
  • AR coated lens
  • tactical switch
  • multiple modes
  • tactical strobe
  • SOS/beacon function
  • waterproof

Cons

  • cool light
  • moderated performance
  • no mode memory
  • no battery indicator
  • no built-in charger
  • no LVP
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic

Photos

Nitecore MT21A / MT21A photo 1.
Nitecore MT21A / MT21A

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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.
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