Manker MK37 Luminus flashlight review

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

The Manker MK37 Luminus flashlight was 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.

Want to know if the Manker made a really good flashlight? You'll find out by the end of our article!

Table of Contents

  • Manker MK37 Luminus specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
    • Links
  • Conclusion, pros and cons
  • Photos
  • Comparisons

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.

Manker MK37 Luminus / MK37L

The MK37 Luminus flashlight is an essential tools for emergency preparedness. This light has 6 modes of lighting. The MK37 Luminus's mode memory makes the flashlight start in your preferred or needed mode. The strobe function produces a high-frequency flashing light pattern.

Manker MK37 Luminus specifications

NameMK37 Luminus
Rated 4 / 5 based on 1310 user votes.

This flashlight can fit in pockets, backpacks, or glove compartments.

Manker MK37 Luminus / 3

Body, materials, weight, colors

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

This 298 g flashlight is heavier than the average handheld flashlight. The length of a flashlight can affect how it feels in your hand and how you can grip it. Aluminium is a lightweight material, which is beneficial for MK37 Luminus flashlight. The HAIII coating resists corrosion well. The MK37 Luminus flashlight presents an extensive selection of vibrant colors: black, sand.

Manker MK37 Luminus / 2

System, LED, lens, reflector

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

We 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 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.

Manker MK37 Luminus / 1

Performance, flux, intensity, throw

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

The MK37 Luminus flashlight has 5800 lm. It will provide an exceptionally bright and powerful beam of light. The Manker flashlight has 218556 cd. 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.

Manker MK37 Luminus / 5

Software, user interface, modes

Modes6 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. You can use Strobe for signaling purposes. It can also be used for self-defense or to attract attention in emergency situations.

Manker MK37 Luminus / 4

Features, battery, protections

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 check the battery status. The MK37 Luminus cannot charge batteries. You may need an external charger to keep your battery going. The flashlight detects when the battery's voltage has dropped to a certain level. The built-in thermal control adjusts brightness output to prevent overheating.

The "8" in the IPx8 rating means the highest level of protection. A flashlight's impact resistance can vary. It depends on its design, construction, and intended use.

Accessories, package contents

Package contents2 x spare o-rings
shoulder strap

Instead of searching for matching O-rings, having spare O-rings allows quick fixes.

Official sitehttps://www.mankerlight.com/

Conclusion, pros and cons

This Manker 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
  • body color options
  • AR coated lens
  • side switch
  • strong flux
  • extremely bright
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • waterproof


  • cool light
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic


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


According to our statistics, the Manker MK37 Luminus flashlight was most often compared on our site with the following flashlights.

If there’s information about the Manker MK37 Luminus that you would like to see on this site, then write to us.

Updated: April 23, 2024

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.