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Sofirn SF47T 1500lm flashlight review: Pros and Cons

Osram KW CULPM1.TG LED
1500 lm output
303750 cd intensity
2 x 21700 Li-Ion batteries

The Sofirn SF47T flashlight released in 2020. It uses Osram KW CULPM1.TG LED, SMO reflector and 2 x 21700 Li-Ion batteries. The powerful emitter in this flashlight provides up to 1500 lm output, 303750 cd intensity, and a beam distance of 1102 m.

Table of Contents

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 SF47T, then tell us.

Sofirn SF47T / SF47T

The flashlight is a must-have tool for outdoor activities. These include camping, hiking, and night-time exploration, it offers guidance and safety. This light has 5 modes of lighting. The SF47T'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.

Sofirn SF47T specifications

BrandSofirn
NameSF47T
TypeSF47T
Rating
Rated 3 / 5 based on 1242 user votes.
Launch2020
Formflashlight

Flashlights let you navigate in the dark. They help you find supplies and signal for help. They also provide comfort and security in tough times.

Sofirn SF47T / 2

Body, materials, weight, colors

Weight315 g
Length247.5 mm
Head diameter55 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

Flashlights in this weight range (315 g) may have features. They include extended battery life, intense brightness, and rugged construction for heavy-duty use. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. Aluminium is a lightweight material, which is beneficial for SF47T flashlight. The HAIII coating is often matte or textured. This finish improves grip and feels nice in the hand. This flashlight comes in a sleek black color option.

Sofirn SF47T / 4

System, LED, lens, reflector

EmitterOsram KW CULPM1.TG LED
Color temperature6500 K
ReflectorSMO
Lenstoughtened AR coated glass
Switchelectronic side, mechanical rear

Osram is a German lighting manufacturer. It is a well-known and respected LED maker in the lighting industry. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. Flashlights use the smooth reflector when long-range light is important. This includes searchlights and thrower flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index.

The SF47T uses multiple switches. The switches' placement and design determine this. They allow for one-handed operation. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches. Mechanical switches often 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. This removes the need for complex button combinations or multi-step processes.

Sofirn SF47T / 1

Performance, flux, intensity, throw

Flux1500 lm
Intensity303750 cd
Throw1102 m
CD/LM factor202.5

The 1500 lm output of SF47T provides great flexibility. You can adjust the brightness to fit different needs. 303750 cd represents an extraordinarily high level of brightness. 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.

Sofirn SF47T / 3

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeyes
Strobeyes
SOS/Beaconyes

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. The SF47T flashlight has ramping mode. Its user interface lets you control the brightness by pressing and holding a button.

Designers created the strobe function to produce a disorienting or attention-grabbing effect. The SOS code starts three short signals. Then, three long signals follow. Finally, there are three short signals again.

Features, battery, protections

Battery2 x 21700 Li-Ion batteries
Battery indicatoryes
Charger portno
LVPyes
Thermal regulationyes
ProtectionIPx8
Impact resistance1 m
AUX LEDsno
Magneticno

The Sofirn SF47T flashlight is powered by 2 x 21700 Li-Ion batteries. The battery indicator prevents surprise power failures. It ensures the flashlight is ready when needed. The SF47T doesn't have charger port. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage. 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. The SF47T flashlight proudly boasts an exceptional impact resistance rating of 1 m.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the SF47T 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

  • aluminium body
  • AR coated lens
  • side switch
  • tactical switch
  • adequate performance
  • extremely bright
  • multiple modes
  • mode memory
  • ramping mode
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • waterproof

Cons

  • cool light
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic

Photos

Sofirn SF47T / SF47T photo 1.
Sofirn SF47T / SF47T photo 2.
Sofirn SF47T / SF47T photo 3.
Sofirn SF47T / SF47T photo 4.
Sofirn SF47T / SF47T photo 5.
Sofirn SF47T / SF47T

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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.
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