Weltool W4 Dragon in Clouds flashlight review

560 lm output
1782000 cd intensity
1 x 21700 Li-Ion battery

The Weltool W4 Dragon in Clouds flashlight was released in 2020. It uses LEP, LEP reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 560 lm output, 1782000 cd intensity, and a beam distance of 2670 m.

Curious to see if this flashlight impresses? Read on!

Table of Contents

  • Weltool W4 Dragon in Clouds 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
  • 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. If you found an error or something lacking in the specifications for the Weltool W4 Dragon in Clouds, then tell us.

Weltool W4 Dragon in Clouds / W4

The W4 Dragon in Clouds flashlight is an essential tools for emergency preparedness. In disasters or blackouts, when electricity is unavailable, a flashlight is crucial. It helps you navigate dark areas. This LEP flashlight produces an incredibly bright and concentrated beam of light. This light has 2 modes of lighting. This flashlight does not have memory function.

Weltool W4 Dragon in Clouds specifications

NameW4 Dragon in Clouds
Rated 3 / 5 based on 1260 user votes.

This flashlight can fit in pockets, backpacks, or glove compartments. You can carry it wherever you go.

Weltool W4 Dragon in Clouds / 1

Body, materials, weight, colors

Weight332.8 g
Length193 mm
Body diameter27 mm
Head diameter60 mm
Materialaluminium alloy body with HAIII hard-anodized finish

This 332.8 g flashlight might feel relatively heavy if held in hand. 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 the W4 Dragon in Clouds has a reputation for being durable and strong. It offers excellent resistance to impacts, scratches, and corrosion. The HAIII process makes a hard and wear-resistant surface on the aluminum. This makes it more resistant to scratches, abrasions, and impacts. The W4 Dragon in Clouds flashlight is available in black.

Weltool W4 Dragon in Clouds / 2

System, LED, lens, reflector

Color temperature6500 K
Lenstoughtened AR coated glass
Switchmechanical rear

LEP technology is a type of lighting. It uses a laser diode to excite a phosphor material. The color temperature choice depends on the light's use and personal taste. The coating is thin and applied to the lens surface. It cuts reflections and boosts light transmission. Mechanical switches are usually robust. They resist wear and tear and work in many environments. The rear switch allows for quick and easy momentary or constant-on activation. It enables rapid response and tactical moves.

Performance, flux, intensity, throw

Flux560 lm
Intensity1782000 cd
Throw2670 m
CD/LM factor3182.14

560 lm can provide a decent amount of brightness and be suitable for many everyday tasks. The Weltool flashlight has 1782000 cd. It will produce a very intense beam. 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.

Software, user interface, modes

Modes2 modes
Mode memoryno
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences.

Features, battery, protections

Battery1 x 21700 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes
Impact resistance1 m

The W4 Dragon in Clouds flashlight utilizes 1 x 21700 Li-Ion battery as its power source. The W4 Dragon in Clouds cannot charge batteries. You may need an external charger to keep your battery going. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge, so it doesn't need protected cells. The W4 Dragon in Clouds has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates.

The "6" in the IP67 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The "7" in the IP67 rating shows that the flashlight can survive being submerged in water. It can withstand a certain depth for a limited time without getting damaged. A flashlight's impact resistance can vary. It depends on its design, construction, and intended use.

Accessories, package contents

Package contents21700 battery with USB Type-C
USB Type-C cable
spare o-ring

The included battery lets you immediately use the flashlight for your desired applications. It saves time and allows you to focus on your tasks or activities. Instead of searching for matching O-rings, having spare O-rings allows quick fixes.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the W4 Dragon in Clouds 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 Weltool 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
  • LEP technology
  • AR coated lens
  • tactical switch
  • extremely bright
  • multiple modes
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof
  • battery included


  • cool light
  • moderated performance
  • no mode memory
  • no battery indicator
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic


Weltool W4 Dragon in clouds / W4 photo 1.
Weltool W4 Dragon in clouds / W4 photo 2.
Weltool W4 Dragon in clouds / W4 photo 3.
Weltool W4 Dragon in Clouds / W4

Weltool W4 Dragon in Clouds comparisons

According to our statistics, the Weltool W4 Dragon in Clouds flashlight was most often compared on our site with the following flashlights.

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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.