Fenix LR40R 12000lm In-depth review, Pros and Cons

1 x Cree XP-L HI LED, 18 x Cree XP-G3 LEDs
12000 lm output
149382 cd intensity
4 x 18650 Li-Ion batteries

The Fenix LR40R (LR40R) released in 2019. It uses 1 x Cree XP-L HI LED, 18 x Cree XP-G3 LEDs, SMO reflector and 4 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 12000 lm output, 149382 cd intensity, and a beam distance of 773 m.

The LR40R lashlight offers a versatile lighting solution. This light has 4 + 5 modes of lighting. Instead of having to cycle through multiple modes to find the desired setting, mode memory of LR40R ensures that the flashlight starts in the mode you prefer or need. The strobe function of LR40R produces a high-frequency flashing light pattern that is designed to disorient or distract potential threats or aggressors. The flashlight is rechargeable easily via USB port.

Fenix LR40R (LR40R) pictures

Fenix LR40R / LR40R photo
Fenix LR40R / LR40R photo
Fenix LR40R / LR40R photo
Fenix LR40R / LR40R

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 LR40R, then don’t hesite and signal the problem to us.

Fenix LR40R (LR40R) specifications

Rated 4/5 based on 1236 user votes.

The LR40R flashlight enhances safety by illuminating potential hazards and improving visibility in low-light conditions.


Weight500 g
Length154 mm
Body diameter51 mm
Head diameter80 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 500 g flashlight is quite heavy for a handheld flashlight. The increased weight can provide advantages such as longer runtime, enhanced durability, and the ability to project a brighter and farther-reaching beam. The length of a flashlight can also impact its balance and weight distribution. A well-balanced flashlight, where the weight is evenly distributed, can be more comfortable to hold for longer periods and reduce hand fatigue.

Aluminium body of LR40R is known for its durability and strength. It offers excellent resistance to impacts, scratches, and corrosion, making it suitable for rugged outdoor use or in demanding environments. The HAIII coating provides excellent corrosion resistance, protecting the underlying aluminum from exposure to moisture, humidity, and other corrosive elements. It helps maintain the appearance and functionality of the flashlight, even in harsh environments. The LR40R flashlight is available in black.


Emitter1 x Cree XP-L HI LED, 18 x Cree XP-G3 LEDs
Color temperature5500 K
LensAR coated glass
Switchdual electronic side

Cree LEDs are commonly used in a wide range of lighting applications. Their products are trusted by lighting professionals and have gained a strong reputation for quality and performance. The choice of color temperature depends on the specific lighting application and personal preferences. With the smooth reflector of the LR40R, the beam tends to have a well-defined hotspot at the center, which provides a concentrated beam of light for long-range applications.

This flashlight has an AR coated lens. This Anti-Reflective coating is a thin optical coating applied to the surface of the lens to minimize reflections and improve light transmission. The LR40R has electronic switch. Some flashlights with electronic switches have programmable features that allow users to customize the behavior of the flashlight. This may include setting specific modes, configuring brightness levels, or enabling unique functions according to individual preferences.


Flux12000 lm
Intensity149382 cd
Throw773 m
CD/LM factor12.45

The LR40R flashlight can produce 12000 lm output. Flashlights with very high lumen outputs demand a substantial amount of power. Ensure you consider the battery capacity, runtime, and rechargeability of the flashlight. With 149382 cd, the flashlight will provide an intense and powerful beam of light that can illuminate objects or areas with exceptional brightness and clarity. 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. A higher cd/lm ratio indicates that the light is more concentrated in a specific direction, while a lower ratio indicates a more diffused or spread-out light output.


Modes4 + 5 modes
Mode memoryyes
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. The LR40R has mode memory. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again. Strobe mode on LR40R flashlight produces a rapid, repeated flashing of light. It can be used for signaling purposes, self-defense, or attracting attention in emergency situations. SOS mode of the LR40R produces a specific sequence of long and short flashes to signal distress or emergency situations. It is commonly used in outdoor adventures or survival scenarios.


Battery4 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes

The LR40R flashlight utilizes 4 x 18650 Li-Ion batteries as its power source. The LR40R has a battery indicator. A battery indicator is a feature that provides information about the remaining power level of the flashlight's battery. It helps users monitor the battery status and estimate how much runtime they have left before the battery needs to be recharged or replaced. This flashlight can charge the battery with an integrated charger, and it works with a USB power source.

LVP (Low Voltage Protection) is designed to protect the battery from being over-discharged, which can lead to reduced battery life or even permanent damage. 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. It indicates that the LR40R flashlight, is fully protected against the entry of dust and other solid objects. The "8" in the IP68 rating indicates the highest level of protection against water ingress.


Package contentsUSB Type-C cable
battery pack
nylon holster
spare o-ring

With an included battery you can immediately use the flashlight for your desired applications, saving time and allowing you to focus on your tasks or activities. The package includes a holster to safely store your flashlight. When gripping the flashlight with the lanyard around your wrist, it provides a more secure and stable hold. Having spare O-rings allows you to replace them as needed, ensuring that the flashlight maintains its water-tight seal and remains protected from moisture or water ingress.

The performance of the Fenix LR40R 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.

Fenix LR40R (LR40R) comparisons

According to our statistics, the Fenix LR40R flashlight was most often compared on our site with the following flashlights.

Fenix RC40 2016 (RC402016) Fenix RC40 2016 Fenix TK75 (TK75) Fenix TK75 Fenix PD35 v2 (PD35V2) Fenix PD35 v2 Fenix TK11 TAC (TK11TAC) Fenix TK11 TAC Fenix E16 (E16) Fenix E16 Fenix HT32 (HT32) Fenix HT32 Fenix PD32 (PD32) Fenix PD32 Fenix LR40R V2.0 (LR40RV20) Fenix LR40R V2.0

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