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Sofirn

Sofirn SC31B flashlight review

Luminus SST20 LED
1000 lm output
10712 cd intensity
1 x 18650 Li-Ion battery

The Sofirn SC31B flashlight was released in 2019. It uses Luminus SST20 LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1000 lm output, 10712 cd intensity, and a beam distance of 207 m.

Curious if the SC31B shines bright? You'll find out soon!

Table of Contents

  • Sofirn SC31B specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • 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.

Sofirn SC31B / SC31B

The SC31B is an impressive flashlight that offers both power and reliability. This light has 4 modes of lighting. With mode memory, when you turn off the SC31B and then turn it back on, it will activate the last used mode. The strobe function produces a high-frequency flashing light pattern. The flashlight uses rechargeable batteries.

Sofirn SC31B specifications

BrandSofirn
NameSC31B
TypeSC31B
Rating
Rated 3 / 5 based on 1527 user votes.
Launch2019
Formflashlight

This Sofirn flashlight is compact and handheld.

Body, materials, weight, colors

Weight59 g
Length117.5 mm
Head diameter25.4 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

An extremely lightweight handheld flashlight weighs 59 g. Consider the length of the flashlight, it should fit comfortably in your chosen way to carry it. Aluminium is a lightweight material, which is beneficial for SC31B flashlight. The HAIII process makes a hard and wear-resistant surface on the aluminum. This flashlight comes in a sleek black color option.

Sofirn SC31B / 1

System, LED, lens, reflector

EmitterLuminus SST20 LED
Color temperature6500 K
ReflectorSMO
LensAR coated glass
Switchelectronic side

We know Luminus LEDs for their efficiency, brightness, color accuracy, and long lifespan. The color temperature choice depends on the light's use and personal taste. The SC31B uses a smooth reflector. A smooth reflector has a polished, mirror-like surface. The AR coating of the lens helps to reduce reflections. Some flashlights with electronic switches have programmable features.

Performance, flux, intensity, throw

Flux1000 lm
Intensity10712 cd
Throw207 m
CD/LM factor10.71

The 1000 lm output of SC31B provides great flexibility. The SC31B flashlight has 10712 cd, it can light objects at greater distances. The throw distance is the farthest distance the flashlight can light an object. 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

Modes4 modes
Mode memoryyes
Ramping modeno
Strobeyes
SOS/Beaconyes

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. Strobe mode on SC31B flashlight produces a rapid, repeated flashing of light. The SOS signal is an international distress call.

Features, battery, protections

Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
LVPyes
Thermal regulationyes
ProtectionIPx8
AUX LEDsno
Magneticno

The SC31B flashlight utilizes 1 x 18650 Li-Ion battery as its power source. The battery indicator shows the remaining power level of the flashlight's battery. The SC31B flashlight can charge from a USB power source. LVP (Low Voltage Protection) is designed to protect the battery. The thermal protection feature helps prevent overheating. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period.

Official sitehttps://sofirnlight.com/

Conclusion, pros and cons

This Sofirn 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
  • side switch
  • adequate performance
  • multiple modes
  • mode memory
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof

Cons

  • cool light
  • no auxiliary LEDs
  • non-magnetic

Photos

Sofirn SC31B / SC31B photo 1.
Sofirn SC31B / SC31B photo 2.
Sofirn SC31B / SC31B

Comparisons

According to our statistics, the Sofirn SC31B flashlight was most often compared on our site with the following flashlights.

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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.