Sofirn SD01 diving light review

The Sofirn SD01 diving light released in 2021. It uses 3 x Luminus SST40 LEDs, SMO reflector and 4 x 18650 Li-Ion batteries. The powerful emitter in this diving light provides up to 6000 lm output, 64162 cd intensity, and a beam distance of 507 m.

Excited to learn if the SD01 lives up to expectations? Read on!

Table of Contents

• Sofirn SD01 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 Sofirn SD01, then tell us.

This light has 4 modes of lighting. The memory function is a nice feature, the light will remember the last used mode.

Sofirn SD01 specifications

Body, materials, weight, colors

This 558 g flashlight is quite heavy for a handheld flashlight. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. The aluminium body of the SD01 has excellent thermal conductivity. This means it can effectively dissipate heat generated by the flashlight's components. Flashlight makers widely use HAIII coating. It is durable, resists corrosion, and improves grip. It also looks good. The SD01 flashlight comes in a stylish 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 a characteristic of light. It is used to quantify the color appearance of light sources. The SD01 has a smooth reflector. The right reflector focuses light well. It gives you a better hotspot, and it throws better.

Performance, flux, intensity, throw

The SD01 flashlight has 6000 lm. It will provide an exceptionally bright and powerful beam of light. 64162 cd represents an extremely high level of brightness for a flashlight. 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

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.

Features, battery, protections

The Sofirn SD01 flashlight is powered by 4 x 18650 Li-Ion batteries. The SD01 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 built-in thermal control adjusts brightness output to prevent overheating. The "8" in the IPx8, depth 100 meters rating means the highest level of protection. It is against water ingress. The SD01 flashlight proudly boasts an exceptional impact resistance rating of 1 m.

Accessories, package contents

The lanyard of the SD01 protects the flashlight from accidental damage. It does this by stopping it from falling or hitting the ground. 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 SD01 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Photos

If there’s information about the Sofirn SD01 that you would like to see on this site, then write to us.

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.