Convoy M21B SST40 flashlight review

The Convoy M21B SST40 flashlight was released in 2019. It uses Luminus SST40 LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2300 lm output, 40000 cd intensity, and a beam distance of 400 m.

Curious to know if this Convoy flashlight is top-notch? Stay tuned for the answer!

Table of Contents

• Convoy M21B SST40 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.

The flashlight is a must-have tool for outdoor activities, it offers guidance and safety. This light has 4 modes of lighting. The M21B SST40's mode memory makes the user experience more seamless and intuitive.

Convoy M21B SST40 specifications

Flashlights let you navigate in the dark. They help you find supplies and signal for help.

Body, materials, weight, colors

This 120 g flashlight is slightly heavier than most handheld flashlights. The best flashlight size depends on personal preference. The aluminium body of the M21B SST40 has a reputation for being durable and strong. The HAIII coating is often matte or textured. This flashlight features a captivating black color.

System, LED, lens, reflector

Luminus is a US-based LED manufacturer. In the lighting industry, it has gained recognition as reputable. Color temperature is used to quantify the color appearance of light sources. Flashlights use the smooth reflector when long-range light is important. The AR coating on the lens maximizes light transmission. The M21B SST40 uses multiple switches. They allow for one-handed operation. Mechanical switches offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. A simple press or click of the rear switch turns the flashlight on or off.

Performance, flux, intensity, throw

The 2300 lm output of M21B SST40 provides great flexibility. The M21B SST40 flashlight has 40000 cd, it can light objects at greater distances. The throw distance is the farthest distance the flashlight can light an object. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.

Software, user interface, modes

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.

Features, battery, protections

The Convoy M21B SST40 flashlight is powered by 1 x 21700 Li-Ion battery. The M21B SST40 doesn't have charger port. The Low Voltage Protection helps save the battery's capacity. The thermal protection feature helps prevent overheating. The "7" in the IPx7 rating shows that the flashlight can survive being submerged in water.

Accessories, package contents

The lanyard of the M21B SST40 protects the flashlight from accidental damage.

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.

Photos

Comparisons

According to our statistics, the Convoy M21B SST40 flashlight was most often compared on our site with the following flashlights.

Convoy Z1 Convoy L2 XHP50.2 Convoy C8+ XPL Convoy M3-C XHP70.2

If there’s information about the Convoy M21B SST40 that you would like to see on this site, then write to us.

Updated: April 23, 2024

by 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.