Manker MK34 II SST40 CW flashlight review

12 x Luminus SST40 LEDs
20000 lm output
30625 cd intensity
3 x 18650 Li-Ion batteries

The Manker MK34 II SST40 CW flashlight was released in 2021. It uses 12 x Luminus SST40 LEDs, OP reflector and 3 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 20000 lm output, 30625 cd intensity, and a beam distance of 350 m.

Curious if the MK34 II SST40 CW shines bright? You'll find out soon!

Table of Contents

  • Manker MK34 II SST40 CW specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
  • Conclusion, pros and cons
  • Photos

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 Manker MK34 II SST40 CW, then tell us.

Manker MK34 II SST40 CW / MK34IISST40CW

The MK34 II SST40 CW is a powerful and reliable flashlight. It has impressive illumination and durable construction. It is an exceptional lighting tool, it works in many situations and environments. This light has 7 modes of lighting. The MK34 II SST40 CW flashlight recalls the last used mode. So, you don't need to access higher brightness levels unless you need to. You can use the strobe function as a self-defense tool. It provides a non-lethal way to deter or disorient attackers.

Manker MK34 II SST40 CW specifications

NameMK34 II SST40 CW
Rated 3 / 5 based on 1238 user votes.

This Manker flashlight offers portability, versatility, and reliability in providing illumination.

Manker MK34 II SST40 CW / 2

Body, materials, weight, colors

Weight316 g
Length109.5 mm
Body diameter46 mm
Head diameter63.4 mm
Materialaluminium alloy with HAIII hard-anodized finish

Flashlights in this weight range (316 g) may have features. They include extended battery life, intense brightness, and rugged construction for heavy-duty use. The length of a flashlight can affect how it feels in your hand and how you can grip and maneuver it. Aluminium is a lightweight material, which is beneficial for MK34 II SST40 CW flashlight. The body of MK34 II SST40 CW flashlight treated with a Type III hard-anodized, anti-abrasive finish. This flashlight comes in a sleek gray color option.

Manker MK34 II SST40 CW / 1

System, LED, lens, reflector

Emitter12 x Luminus SST40 LEDs
Color temperature6500 K
Lenstoughtened AR coated glass
Switchelectronic side

Luminus has established a positive reputation as a reliable LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. The OP reflector is a specific type of reflector, it is commonly used in flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index. The electronic switches may have a higher chance of standby drain.

Manker MK34 II SST40 CW / 4

Performance, flux, intensity, throw

Flux20000 lm
Intensity30625 cd
Throw350 m
CD/LM factor1.53

The MK34 II SST40 CW flashlight has 20000 lm. It will beam an intense and blindingly bright light. The MK34 II SST40 CW flashlight has 30625 cd. It can light objects at greater distances. The throw distance is the farthest distance the flashlight can light an object. Candela per lumen (cd/lm) measures a flashlight's beam intensity. It compares this to its total luminous flux or output.

Manker MK34 II SST40 CW / 3

Software, user interface, modes

Modes7 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. You can use Strobe for signaling purposes. It can also be used for self-defense or to attract attention in emergency situations. The MK34 II SST40 CW's SOS mode produces a specific sequence of long and short flashes. It signals distress or emergency.

Features, battery, protections

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

The MK34 II SST40 CW flashlight's power source is 3 x 18650 Li-Ion batteries. It provides reliable, long-lasting energy for top performance. The battery indicator helps users check the battery status. It also estimates how much runtime they have left before recharging the battery. The MK34 II SST40 CW doesn't have charger port. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage.

The thermal protection feature helps prevent overheating. Overheating can harm the flashlight's performance, battery, and safety. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this. A flashlight's impact resistance can vary. It depends on its design, construction, and intended use.

Accessories, package contents

Package contentslanyard
nylon holster
spare o-ring
tripod thread adapter

The package includes a holster. It is designed to protectively store your flashlight. Securing the flashlight with a lanyard frees up your hands for other tasks. It keeps the flashlight within reach. When using spare O-rings, follow the maker's instructions. Use their guidelines for proper installation.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the MK34 II SST40 CW 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 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
  • OP reflector
  • AR coated lens
  • side switch
  • extremely powerful
  • super bright
  • multiple modes
  • mode memory
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • waterproof
  • adapter included
  • protective holster


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


Manker MK34 II SST40 CW / MK34IISST40CW photo 1.
Manker MK34 II SST40 CW / MK34IISST40CW photo 2.
Manker MK34 II SST40 CW / MK34IISST40CW photo 3.
Manker MK34 II SST40 CW / MK34IISST40CW photo 4.
Manker MK34 II SST40 CW / MK34IISST40CW photo 5.
Manker MK34 II SST40 CW / MK34IISST40CW

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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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