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Convoy

Convoy S21A flashlight review

Luminus SST40 LED
2300 lm output
19600 cd intensity
1 x 21700 Li-Ion battery

The Convoy S21A flashlight was released in 2020. It uses Luminus SST40 LED, OP reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2300 lm output, 19600 cd intensity, and a beam distance of 280 m.

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

Table of Contents

  • Convoy S21A 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 Convoy S21A, then tell us.

Convoy S21A / S21A

The S21A flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations. This light has 4/12 modes of lighting. The S21A mode memory eliminates the need to cycle through modes. You don't have to do this each time you turn on the flashlight. It provides convenience and saves time. You can use the strobe function as a self-defense tool. It provides a non-lethal way to deter or disorient attackers.

Convoy S21A specifications

BrandConvoy
NameS21A
TypeS21A
Rating
Rated 3 / 5 based on 1416 user votes.
Launch2020
Formflashlight

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

Convoy S21A / 3

Body, materials, weight, colors

Weight88 g
Length123 mm
Body diameter26.6 mm
Head diameter26.6 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack
gray

The S21A is small, compact, and designed for ultra-portability. A smaller flashlight is easier to carry in a pocket, bag, or pouch. This makes it more convenient for everyday use or when you're on the go. The aluminium body of the S21A 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. Factors can influence the color choice of the flashlight body. These include intended use, environment, personal style, and requirements.

Convoy S21A / 1

System, LED, lens, reflector

EmitterLuminus SST40 LED
Color temperature5000 K, 6500 K
ReflectorOP
LensAR coated glass
Switchmechanical rear

Luminus has established a positive reputation as a reliable LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. The designers of the S21A incorporated an orange peel reflector to enhance the beam. It does this by diffusing the light from the light source. 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 S21A flashlight. It helps you hold it securely.

Convoy S21A / 2

Performance, flux, intensity, throw

Flux2300 lm
Intensity19600 cd
Throw280 m
CD/LM factor8.52

With 2300 lm, the S21A flashlight will offer a brighter and more powerful beam of light. The S21A flashlight has 19600 cd. It can light objects at greater distances. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. Candela per lumen (cd/lm) measures a flashlight's beam intensity. It compares this to its total luminous flux or output.

Convoy S21A / 4

Software, user interface, modes

Modes4/12 modes
Mode memoryyes
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 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. The S21A is tactical strobe ready. The strobe light is disorienting to the person it is aimed at, this makes it hard for them to concentrate. The SOS flashes Morse code so you can signal for help when needed.

Features, battery, protections

Battery1 x 21700 Li-Ion battery
Battery indicatorno
Charger portno
LVPyes
Thermal regulationyes
ProtectionIPx8
Impact resistance1 m
AUX LEDsno
Magneticno

The S21A flashlight's power source is 1 x 21700 Li-Ion battery. It provides reliable, long-lasting energy for top performance. The S21A cannot charge batteries. You may need an external charger to keep your battery going. The flashlight detects when the battery's voltage has dropped to a certain level. Then, it reduces or cuts off the power. The thermal protection feature helps prevent overheating. Overheating can harm the flashlight's performance, battery, and safety.

The "8" in the IPx8 rating means the highest level of protection. It is against water ingress. The flashlight's impact resistance is its ability to withstand physical shocks. It can accomplish this without sustaining any damage.

Accessories, package contents

Package contentslanyard

The lanyard prevents accidental loss of the flashlight.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the S21A 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 Convoy 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
  • body color options
  • warm light
  • OP reflector
  • AR coated lens
  • tactical switch
  • multiple modes
  • mode memory
  • tactical strobe
  • SOS/beacon function
  • low-voltage protection
  • thermal regulation
  • waterproof

Cons

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

Photos

Convoy S21A / S21A photo 1.
Convoy S21A / S21A photo 2.
Convoy S21A / S21A photo 3.
Convoy S21A / S21A photo 4.
Convoy S21A / S21A photo 5.
Convoy S21A / S21A

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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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