Lumintop PK21 flashlight review

1 x Cree XHP70.3 LED
8100 lm output
360300 cd intensity
2 x 21700 Li-Ion batteries

The Lumintop PK21 flashlight was released in 2022. It uses 1 x Cree XHP70.3 LED, OP reflector and 2 x 21700 Li-Ion batteries. The powerful emitter in this flashlight provides up to 8100 lm output, 360300 cd intensity, and a beam distance of 1200 m.

Curious if this Lumintop flashlight is great? Keep reading to find out!

Table of Contents

  • Lumintop PK21 specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • 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.

Lumintop PK21 / PK21

The PK21 is a powerful and reliable flashlight. It has impressive illumination and durable construction. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. The flashlight is rechargeable easily via USB port.

Lumintop PK21 specifications

Rated 4 / 5 based on 558 user votes.

A flashlight provides reassurance and confidence.

Lumintop PK21 / 7

Body, materials, weight, colors

Weight374 g
Length251 mm
Body diameter29 mm
Head diameter68 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 374 g flashlight might feel relatively heavy if held in hand. A smaller flashlight is easier to carry in a pocket, bag, or pouch. The aluminium body of the PK21 has a reputation for being durable and strong. Flashlight makers widely use HAIII coating. The PK21 flashlight is available in black.

Lumintop PK21 / 6

System, LED, lens, reflector

Emitter1 x Cree XHP70.3 LED
Color temperature6000 K
LensAR coated glass
Switchelectronic side

Cree is a US-based LED manufacturer. It is well-regarded for its high-quality products and innovation in lighting. Color temperature is used to quantify the color appearance of light sources. The PK21 has an orange peel (OP) textured reflector. Orange peel reflectors have smoother beams. The AR coating is thin and applied to the lens surface. The flashlight has electronic switches.

Lumintop PK21 / 2

Performance, flux, intensity, throw

Flux8100 lm
Intensity360300 cd
Throw1200 m
CD/LM factor44.48

The PK21 flashlight has 8100 lm. It will provide an exceptionally bright and powerful beam of light. 360300 cd represents an extraordinarily high level of brightness. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.

Lumintop PK21 / 1

Software, user interface, modes

Mode memoryyes
Ramping modeyes

The Anduril firmware is an open-source firmware developed for flashlights. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The PK21's ramping mode is easy to use. It lets you smoothly change the output over its whole range. The PK21 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at, this makes it hard for them to concentrate. The SOS flashes Morse code so you can signal for help when needed.

Lumintop PK21 / 5

Features, battery, protections

Battery2 x 21700 Li-Ion batteries
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes
Impact resistance1.5 m

The Lumintop PK21 flashlight is powered by 2 x 21700 Li-Ion batteries. The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with a built-in charger. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge. The built-in thermal control adjusts brightness output to prevent overheating. The "6" in the IP68 rating shows the level of protection.

The "8" in the IP68 rating means the highest level of protection. The flashlight's impact resistance is its ability to withstand physical shocks. It can accomplish this without sustaining any damage.

Lumintop PK21 / 3
Official sitehttps://lumintop.com/

Conclusion, pros and cons

This Lumintop 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
  • strong flux
  • extremely bright
  • Anduril firmware
  • mode memory
  • ramping mode
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof


  • cool light
  • no auxiliary LEDs
  • non-magnetic


Lumintop PK21 / PK21 photo 1.
Lumintop PK21 / PK21 photo 2.
Lumintop PK21 / PK21 photo 3.
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Lumintop PK21 / PK21 photo 5.
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Lumintop PK21 / PK21 photo 8.
Lumintop PK21 / PK21


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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.