Fenix LD12R 600lm flashlight review: Pros and Cons

1 x Luminus SST20 LED, 1 x SC1818C LED
600 lm output
8616 cd intensity
1 x 14500 Li-Ion or 1 x AA NiMH battery

The Fenix LD12R flashlight released in 2023. It uses 1 x Luminus SST20 LED, 1 x SC1818C LED, SMO reflector and 1 x 14500 Li-Ion or 1 x AA NiMH battery. The powerful emitter in this flashlight provides up to 600 lm output, 8616 cd intensity, and a beam distance of 186 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 Fenix LD12R, then tell us.

Fenix LD12R / LD12R

The LD12R flashlight is a key tool in many situations. It's used for everyday tasks, outdoor adventures, emergencies, and professional work. This light has 4 + 3 modes of lighting. You don't have to cycle through many modes to find what you want. The LD12R's mode memory makes the flashlight start in your preferred or needed mode. The USB charger port lets you charge this flashlight. You can use it with alternative power sources.

Fenix LD12R specifications

Rated 3 / 5 based on 233 user votes.

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

Fenix LD12R / 1

Body, materials, weight, colors

Weight74 g
Length121 mm
Body diameter19 mm
Head diameter22 mm
Materialaluminium alloy with HAIII hard-anodized finish

The flashlight weighs 74 g. It is lightweight and easy to handle for most people. A smaller flashlight is easier to carry in a pocket, bag, or pouch. This makes it more convenient for everyday use or when you're on the go. The aluminium body of the LD12R has a reputation for being durable and strong. It offers excellent resistance to impacts, scratches, and corrosion. Flashlight makers widely use HAIII coating. It is durable, resists corrosion, and improves grip. It also looks good. The LD12R flashlight is available in black.

Fenix LD12R / 3

System, LED, lens, reflector

Emitter1 x Luminus SST20 LED, 1 x SC1818C LED
Color temperature6500 K
Switchmechanical rear

People know Luminus LEDs for their efficiency, brightness, color accuracy, and long lifespan. The color temperature choice depends on the light's use and personal taste. The smooth reflector creates a well-defined hotspot at the center. This hotspot provides a concentrated beam for long-range use. Mechanical switches are usually robust. They resist wear and tear and work in many environments. The rear switch of the LD12R is rugged and durable. It can withstand harsh conditions and repeated use.

Fenix LD12R / 4

Performance, flux, intensity, throw

Flux600 lm
Intensity8616 cd
Throw186 m
CD/LM factor14.36

600 lm can provide a decent amount of brightness and be suitable for many everyday tasks. The LD12R flashlight has 8616 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 candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.

Fenix LD12R / 2

Software, user interface, modes

Modes4 + 3 modes
Mode memoryyes
Ramping modeno

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.

Features, battery, protections

Battery1 x 14500 Li-Ion or 1 x AA NiMH battery
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes
Impact resistance1.5 m
Specialsdual light sources

The LD12R flashlight utilizes 1 x 14500 Li-Ion or 1 x AA NiMH battery as its power source. The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with a built-in charger. It works with a USB power source. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge, so it doesn't need protected cells.

The LD12R has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates. 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. The flashlight's impact resistance is its ability to withstand physical shocks. It can accomplish this without sustaining any damage.

It has auxiliary LEDs which make it really nice looking. The LD12R is magnetic so that the flashlight can be attached to some metallic surfaces.

Accessories, package contents

Package contentsARB-L14-800 battery
USB Type-C cable

The included battery lets you immediately use the flashlight for your desired applications. It saves time and allows you to focus on your tasks or activities. The clip provides flexibility in how you carry your flashlight. The lanyard prevents accidental loss of the flashlight.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the LD12R 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 Fenix 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.


  • lightweight
  • aluminium body
  • tactical switch
  • multiple modes
  • mode memory
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof
  • auxiliary LEDs
  • magnetic
  • battery included
  • clip


  • cool light
  • moderated performance


Fenix LD12R / LD12R photo 1.
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Fenix LD12R / LD12R photo 5.
Fenix LD12R / LD12R

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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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