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Sofirn IF25A 4000K (2020) review

2020
4 x Luminus SST20 LEDs
2000 lm output
8000 cd intensity
1 x 21700 Li-Ion battery

The Sofirn IF25A 4000K (IF25A4000K) released in 2020. It uses 4 x Luminus SST20 LEDs, TIR reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2000 lm output, 8000 cd intensity, and a beam distance of 179 m.

The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. The IF25A 4000K flashlight is rechargeable easily via USB port.

Table of contents:

Sofirn IF25A 4000K (IF25A4000K) specifications

Brand
Sofirn
Name
IF25A 4000K
Type
IF25A4000K
Rating
Rated 4/5 based on 163 user votes.
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Launch
2020
Form
flashlight

Body

The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.

Weight
99 g
Length
106.4 mm
Head diameter
35 mm
Material
aluminium alloy with HAIII hard-anodized finish
Colors
black

System

The emitter of IF25A 4000K manufactured by Luminus, a US-based LED manufacturer. It has an AR coated lens.

Emitter
4 x Luminus SST20 LEDs
Color temperature
4000 K
Reflector
TIR
Lens
toughtened AR coated glass
Switch
electronic side

Performance

The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.

Flux
2000 lm
Intensity
8000 cd
Throw
179 m
CD/LM factor
4
CRI
90

Software

The IF25A 4000K has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again. The ramping mode of the IF25A 4000K is intuitive, and lets you seamlessly ramp the output up and down over almost the entire output range. The IF25A 4000K is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed.

Firmware
Anduril
Mode memory
yes
Ramping mode
yes
Strobe
yes
SOS/Beacon
yes

Features

The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with an integrated charger, and it works with any USB power source. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The built-in thermal control automatically adjusts brightness output to prevent overheating.

Battery
1 x 21700 Li-Ion battery
Battery indicator
yes
Charger port
USB Type-C
LVP
yes
Thermal regulation
yes
Protection
IPx8
AUX LEDs
no
Magnetic
no

Accessories

Package contents
USB Type-C cable

The performance of the Sofirn IF25A 4000K flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Sofirn IF25A 4000K, then don’t hesite and signal the problem to us.

Sofirn IF25A 4000K (IF25A4000K) pictures

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