Fenix LD42 1000lm In-depth review, Pros and Cons

1000 lm output
30625 cd intensity
4 x AA batteries

The Fenix LD42 (LD42) released in 2019. It uses Cree XP-L HI LED, SMO reflector and 4 x AA batteries. The powerful emitter in this flashlight provides up to 1000 lm output, 30625 cd intensity, and a beam distance of 350 m.

The LD42 flashlight is an indispensable tool in various situations, from everyday tasks and outdoor adventures to emergency preparedness and professional use. This light has 5 modes of lighting. This flashlight does not have memory function.

Fenix LD42 (LD42) pictures

Fenix LD42 / LD42 photo 1.
Fenix LD42 / LD42 photo 2.
Fenix LD42 / LD42 photo 3.
Fenix LD42 / LD42

The specifications below 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 Fenix LD42, then don’t hesite and signal the problem to us.

Fenix LD42 (LD42) specifications

Rated 4 / 5 based on 1369 user votes.

The LD42 flashlight enhances safety by illuminating potential hazards and improving visibility in low-light conditions.


Weight100 g
Length159.5 mm
Body diameter32.5 mm
Head diameter34 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 100 g flashlight would generally be considered lightweight and easy to handle for most people. The ideal length of a flashlight depends on personal preference, intended use, and the specific features and functionality you're looking for. Aluminium body of LD42 is known for its durability and strength. It offers excellent resistance to impacts, scratches, and corrosion. HAIII coating is widely used in the flashlight industry due to its durability, corrosion resistance, improved grip, and aesthetic appeal. The LD42 flashlight is available in black.


EmitterCree XP-L HI LED
Color temperature6000 K
LensAR coated glass
Switchrotary front

Cree, a US-based LED manufacturing company is a well-regarded LED manufacturer known for its high-quality products and innovation in the lighting industry. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources, particularly white light. The LD42 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. The Anti-Reflective coating is a thin optical coating applied to the surface of the lens to minimize reflections and improve light transmission.


Flux1000 lm
Intensity30625 cd
Throw350 m
CD/LM factor30.63

With 1000 lm, the LD42 flashlight will offer a brighter and more powerful beam of light. The LD42 flashlight with 30625 cd has an extended throw distance, allowing you to illuminate objects or areas at greater distances. The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor (candela-to-lumen ratio) provides information about how concentrated or focused the light output of a light source is.


Modes5 modes
Mode memoryno
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences.


Battery4 x AA batteries
Battery indicatorno
Charger portno
Thermal regulationyes

The Fenix LD42 flashlight is powered by 4 x AA batteries. The LD42 cannot charge batteries directly. You may need an external charger to keep your battery going. 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. The "6" in the IP68 rating represents the level of protection against solid objects, specifically dust and foreign particles. The "8" in the IP68 rating indicates the highest level of protection against water ingress.


Package contents4 x AA batteries
nylon holster
spare o-ring

The package includes a holster to safely store your flashlight. The clip is useful to keep the light secured in your pocket. The lanyard of LD42 helps protect the flashlight from accidental damage by preventing it from falling or hitting the ground. Regularly replacing worn or damaged O-rings helps maintain the overall durability and performance of the flashlight.

The performance of the Fenix LD42 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.

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