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Sofirn

Sofirn IF25 flashlight review

4 x Luminus SST20 2700 K LEDs (2 x 2700 K, 2 6500 K)
4000 lm output
10000 cd intensity
1 x 21700 Li-Ion battery

The Sofirn IF25 flashlight was released in 2020. It uses 4 x Luminus SST20 2700 K LEDs (2 x 2700 K, 2 6500 K), TIR reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4000 lm output, 10000 cd intensity, and a beam distance of 200 m.

Interested to see if this Sofirn flashlight is a hit? Find out soon!

Table of Contents

  • Sofirn IF25 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. If you found an error or something lacking in the specifications for the Sofirn IF25, then tell us.

Sofirn IF25 / IF25

The IF25 is an impressive flashlight that offers both power and reliability. Its robust build and outstanding illumination make it a versatile lighting instrument. The IF25's mode memory makes the user experience more seamless and intuitive. It has a strobe function, which is one of the most effective self defense tools available. This USB rechargeable flashlight is small and light. It is easy to carry.

Sofirn IF25 specifications

BrandSofirn
NameIF25
TypeIF25
Rating
Rated 3 / 5 based on 1500 user votes.
Launch2020
Formflashlight

A flashlight provides reassurance and confidence. It is helpful in unfamiliar or dangerous places.

Sofirn IF25 / 4

Body, materials, weight, colors

Weight99 g
Length106.4 mm
Head diameter35 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The 99 g flashlight may not provide the same level of brightness or features as larger models. Consider the length of the flashlight. It should fit comfortably in your chosen way to carry it. The aluminum bodies can be anodized. This adds a protective layer and a wide range of color options for flashlight bodies. HAIII is a specific anodizing process. It creates a thicker and harder oxide layer than regular anodizing. This flashlight features a captivating black color.

Sofirn IF25 / 3

System, LED, lens, reflector

Emitter4 x Luminus SST20 2700 K LEDs (2 x 2700 K, 2 6500 K)
Color temperature2700 - 6500 K
ReflectorTIR
Lenstoughtened AR coated glass
Switchelectronic side

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 AR coating on the lens maximizes light transmission. This makes the flashlight more effective in darker environments. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches.

Sofirn IF25 / 1

Performance, flux, intensity, throw

Flux4000 lm
Intensity10000 cd
Throw200 m
CD/LM factor2.5
CRI70

The IF25 flashlight has 4000 lm. It will provide an exceptionally bright and powerful beam of light. The IF25 flashlight has 10000 cd. It provides a much brighter and more intense beam. 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. A flashlight with a higher CRI can show colors more accurately. This is useful for examining objects, it helps tell colors apart in low-light or nighttime. A CRI of 70 can be enough for daily use. This includes outdoor activities, household tasks, and emergencies.

Sofirn IF25 / 2

Software, user interface, modes

Mode memoryyes
Ramping modeyes
Strobeyes
SOS/Beaconyes

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 light doesn't have predefined brightness levels or fixed modes. Instead, the ramping mode lets you adjust the light smoothly within a specific range. Strobe mode on IF25 flashlight produces a rapid, repeated flashing of light. The SOS signal is an international distress call. It indicates an urgent need for help.

Features, battery, protections

Battery1 x 21700 Li-Ion battery
Battery indicatoryes
Charger portUSB Type-C
LVPyes
Thermal regulationyes
ProtectionIPx8
AUX LEDsno
Magneticno
Specialsstepless adjustment of the color temperature

The Sofirn IF25 flashlight is powered by 1 x 21700 Li-Ion battery. A battery indicator is a feature. It shows the remaining power level of the flashlight's battery. The IF25 flashlight can charge from a USB power source. This source can be a wall adapter, computer, power bank, or car charger. The Low Voltage Protection helps save the battery's capacity. It stops it from reaching a critically low voltage.

The built-in thermal control adjusts brightness output to prevent overheating. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this.

Accessories, package contents

Package contentsUSB Type-C cable

According to the ANSI/NEMA FL1 Standard, we measure the performance of the IF25 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 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
  • warm light
  • AR coated lens
  • side switch
  • strong flux
  • mode memory
  • ramping mode
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof

Cons

  • moderated CRI
  • no auxiliary LEDs
  • non-magnetic

Photos

Sofirn IF25 / IF25 photo 1.
Sofirn IF25 / IF25 photo 2.
Sofirn IF25 / IF25 photo 3.
Sofirn IF25 / IF25 photo 4.
Sofirn IF25 / IF25 photo 5.
Sofirn IF25 / IF25

Sofirn IF25 comparisons

According to our statistics, the Sofirn IF25 flashlight was most often compared on our site with the following flashlights.

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Updated: May 10, 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.