Alonefire DV55 diving light review

3 x Cree XM-L2 LEDs
3000 lm output
22500 cd intensity
2 x 26650 Li-Ion batteries

The Alonefire DV55 diving light released in 2016. It uses 3 x Cree XM-L2 LEDs, SMO reflector and 2 x 26650 Li-Ion batteries. The powerful emitter in this diving light provides up to 3000 lm output, 22500 cd intensity, and a beam distance of 300 m.

Curious to know if the Alonefire's diving light is top-notch? Stay tuned for the answer!

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 Alonefire DV55, then tell us.

Alonefire DV55 / DV55

Without mode memory, this flashlight always starts in the default mode.

Alonefire DV55 specifications

Rated 4 / 5 based on 1414 user votes.
Formdiving light

Alonefire DV55 / 5

Body, materials, weight, colors

Weight349 g
Length207 mm
Body diameter34 mm
Head diameter49.5 mm
Materialaluminium alloy with HAIII hard-anodized finish

Flashlights in this weight range (349 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. The aluminum bodies can be anodized. This adds a protective layer and a wide range of color options for flashlight bodies.

Flashlight makers widely use HAIII coating. It is durable, resists corrosion, and improves grip. It also looks good. This flashlight features a captivating black color.

Alonefire DV55 / 4

System, LED, lens, reflector

Emitter3 x Cree XM-L2 LEDs
Color temperature6500 K
LensAR coated glass
Switchmechanical side

Lighting professionals trust Cree LEDs. Cree LEDs have gained a strong reputation for quality and performance. The color temperature choice depends on the light's use and personal taste. The DV55 uses a smooth reflector. A smooth reflector is different from an orange peel reflector. It has a polished, mirror-like surface. The AR coating on the lens maximizes light transmission. This makes the flashlight more effective in darker environments. Mechanical switches often offer tactile feedback. Users can feel a distinct click or resistance when they press the switch.

Alonefire DV55 / 3

Performance, flux, intensity, throw

Flux3000 lm
Intensity22500 cd
Throw300 m
CD/LM factor7.5

The 3000 lm output of DV55 provides great flexibility. You can adjust the brightness to fit different needs. The DV55 flashlight has 22500 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.

Alonefire DV55 / 2

Software, user interface, modes

Mode memoryno
Ramping modeno

Alonefire DV55 / 1

Features, battery, protections

Battery2 x 26650 Li-Ion batteries
Battery indicatorno
Charger portno
Thermal regulationyes
Protectiondepth 100 meters

The DV55 flashlight utilizes 2 x 26650 Li-Ion batteries as its power source. The DV55 doesn't have charger port. The Low Voltage Protection helps save the battery's capacity. It stops it from reaching a critically low voltage. The DV55 has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates.

Accessories, package contents

Package contents18650 adapters

The lanyard of the DV55 protects the flashlight from accidental damage. It does this by stopping it from falling or hitting the ground.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the DV55 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 Alonefire 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.


  • aluminium body
  • AR coated lens
  • side switch
  • super bright
  • low-voltage protection
  • thermal regulation
  • adapter included


  • cool light
  • no mode memory
  • no battery indicator
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic


Alonefire DV55 / DV55 photo 1.
Alonefire DV55 / DV55 photo 2.
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Alonefire DV55 / DV55 photo 6.
Alonefire DV55 / DV55

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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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