Manker MK37 Luminus 5800lm In-depth review, Pros and Cons

Luminus SBT90.2 LED
5800 lm output
218556 cd intensity
3 x 18650 Li-Ion batteries

The Manker MK37 Luminus (MK37L) released in 2020. It uses Luminus SBT90.2 LED, TIR reflector and 3 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 5800 lm output, 218556 cd intensity, and a beam distance of 935 m.

The MK37 Luminus lashlight offers a versatile lighting solution. This light has 6 modes of lighting. Instead of having to cycle through multiple modes to find the desired setting, mode memory of MK37 Luminus ensures that the flashlight starts in the mode you prefer or need. The strobe function produces a high-frequency flashing light pattern that is designed to disorient or distract potential threats or aggressors.

Manker MK37 Luminus (MK37L) pictures

Manker MK37 Luminus / MK37L photo 1.
Manker MK37 Luminus / MK37L photo 2.
Manker MK37 Luminus / MK37L photo 3.
Manker MK37 Luminus / MK37L photo 4.
Manker MK37 Luminus / MK37L photo 5.
Manker MK37 Luminus / MK37L photo 6.
Manker MK37 Luminus / MK37L

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 Manker MK37 Luminus, then don’t hesite and signal the problem to us.

Manker MK37 Luminus (MK37L) specifications

NameMK37 Luminus
Rated 4 / 5 based on 1191 user votes.

Unlike ambient or overhead lighting sources, flashlights allow you to direct the light exactly where you need it.


Weight298 g
Length128.6 mm
Body diameter47 mm
Head diameter52.2 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 298 g flashlight is not excessively heavy, but it is noticeably heavier than the average weight for handheld flashlights. The length of a flashlight can affect how it feels in your hand and how you can grip and maneuver it. The aluminium body of MK37 Luminus has excellent thermal conductivity, meaning it can effectively dissipate heat generated by the flashlight's components. The HAIII coating provides excellent corrosion resistance, protecting the underlying aluminum from exposure to moisture, humidity, and other corrosive elements. The MK37 Luminus flashlight presents an extensive selection of vibrant colors: black, sand.


EmitterLuminus SBT90.2 LED
Color temperature6500 K
Lenstoughtened AR coated glass
Switchelectronic side

Luminus LEDs are known for their efficiency, brightness, color accuracy, and long lifespan. The choice of color temperature depends on the specific lighting application and personal preferences. The AR coating reduces the loss of light due to reflections, allowing more light to pass through the lens. Some flashlights with electronic switches have programmable features that allow users to customize the behavior of the flashlight.


Flux5800 lm
Intensity218556 cd
Throw935 m
CD/LM factor37.68

With 5800 lm, the MK37 Luminus flashlight will provide an exceptionally bright and powerful beam of light. With 218556 cd, this Manker flashlight will produce an extremely intense and powerful beam of light. The throw is the calculated 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.


Modes6 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. 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 can be used for signaling purposes, self-defense, or attracting attention in emergency situations.


Battery3 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portno
Thermal regulationyes
Impact resistance1 m

The MK37 Luminus flashlight utilizes 3 x 18650 Li-Ion batteries as its power source. The battery indicator helps users monitor the battery status and estimate how much runtime they have left before the battery needs to be recharged or replaced. The MK37 Luminus cannot charge batteries directly. You may need an external charger to keep your battery going. When the flashlight detects that the voltage of the battery has dropped to a certain threshold, it automatically reduces or cuts off the power output.

The MK37 Luminus has thermal protection feature. The thermal protection mechanisms are designed to monitor and regulate the temperature of the flashlight during operation. The "8" in the IPx8 rating indicates the highest level of protection against water ingress. The impact resistance of a flashlight can vary depending on its design, construction, and intended use.


Package contents2 x spare o-rings
shoulder strap

Instead of searching for compatible O-rings, having spare O-rings readily available allows for convenient and immediate repairs or replacements.

The performance of the Manker MK37 Luminus 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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