FlashlightChart.com
Sofirn

Sofirn SP33 1080lm flashlight review: Pros and Cons

Cree XP-L HI LED
1080 lm output
8100 cd intensity
1 x 18650 Li-Ion battery

The Sofirn SP33 flashlight released in 2017. It uses Cree XP-L HI LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1080 lm output, 8100 cd intensity, and a beam distance of 180 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 SP33, then tell us.

Sofirn SP33 / SP33

The SP33 flashlight is an essential tools for emergency preparedness. In disasters or blackouts, when electricity is unavailable, a flashlight is crucial. It helps you navigate dark areas. This light has 5 modes of lighting. 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.

Sofirn SP33 specifications

BrandSofirn
NameSP33
TypeSP33
Rating
Rated 3 / 5 based on 1416 user votes.
Launch2017
Formflashlight

This flashlight can fit in pockets, backpacks, or glove compartments. You can carry it wherever you go.

Sofirn SP33 / 1

Body, materials, weight, colors

Weight70.8 g
Length124 mm
Body diameter31.5 mm
Head diameter36 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The flashlight weighs 70.8 g. It is lightweight and easy to handle for most people. Consider the length of the flashlight. It should fit comfortably in your chosen way to carry it. The aluminium body of the SP33 has a reputation for being durable and strong. It offers excellent resistance to impacts, scratches, and corrosion. The HAIII process makes a hard and wear-resistant surface on the aluminum. This makes it more resistant to scratches, abrasions, and impacts. The SP33 flashlight is available in black.

Sofirn SP33 / 2

System, LED, lens, reflector

EmitterCree XP-L HI LED
Color temperature5500 K
ReflectorSMO
Lenstoughtened AR coated glass
Switchelectronic side

Cree is a US-based LED manufacturer. It is well-regarded for its high-quality products and innovation in lighting. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. The SP33 has a smooth reflector. The right reflector focuses light well. It gives you a better hotspot, and it throws better. The coating is thin and applied to the lens surface. It cuts reflections and boosts light transmission. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches.

Sofirn SP33 / 4

Performance, flux, intensity, throw

Flux1080 lm
Intensity8100 cd
Throw180 m
CD/LM factor7.5

With 1080 lm, the SP33 flashlight will offer a brighter and more powerful beam of light. The SP33 flashlight has 8100 cd. It provides a much brighter and more intense beam. 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.

Sofirn SP33 / 3

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeno
Strobeyes
SOS/Beaconno

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. Strobe mode on SP33 flashlight produces a rapid, repeated flashing of light.

Features, battery, protections

Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portno
LVPyes
Thermal regulationyes
ProtectionIP68
AUX LEDsno
Magneticno

The Sofirn SP33 flashlight is powered by 1 x 18650 Li-Ion battery. A battery indicator is a feature. It shows the remaining power level of the flashlight's battery. The SP33 cannot charge batteries. You may need an external charger to keep your battery going. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge, so it doesn't need protected cells. The built-in thermal control adjusts brightness output to prevent overheating.

The "6" in the IP68 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The "8" in the IP68 rating means the highest level of protection. It is against water ingress.

Accessories, package contents

Package contents2 x spare o-rings
lanyard

Attaching a lanyard to your SP33 flashlight provides an additional layer of security. It reduces the risk of accidental drops or loss. 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 SP33 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
  • AR coated lens
  • side switch
  • adequate performance
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof

Cons

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

Photos

Sofirn SP33 / SP33 photo 1.
Sofirn SP33 / SP33 photo 2.
Sofirn SP33 / SP33 photo 3.
Sofirn SP33 / SP33 photo 4.
Sofirn SP33 / SP33 photo 5.
Sofirn SP33 / SP33

If there’s information about the Sofirn SP33 that you would like to see on this site, then write to us.

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.
FlashlightChart.com / Flashlights / Sofirn / Sofirn SP33 (2017)