Jetbeam TH20 Guardian flashlight review

Cree XHP70.2 LED
3980 lm output
29000 cd intensity
1 x 21700 Li-Ion battery

The Jetbeam TH20 Guardian flashlight was released in 2020. It uses Cree XHP70.2 LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 3980 lm output, 29000 cd intensity, and a beam distance of 341 m.

Want to know if the TH20 Guardian is a game-changer? Stay with us!

Table of Contents

  • Jetbeam TH20 Guardian 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.

Jetbeam TH20 Guardian / TH20GU

The flashlight is a must-have tool for outdoor activities, it offers guidance and safety. This light has 4 modes of lighting. Without mode memory, this flashlight always starts in the default mode. You can use the strobe function as a self-defense tool. This USB rechargeable flashlight is small and light.

Jetbeam TH20 Guardian specifications

NameTH20 Guardian
Rated 4 / 5 based on 1528 user votes.

Flashlights let you navigate in the dark. They help you find supplies and signal for help.

Jetbeam TH20 Guardian / 4

Body, materials, weight, colors

Weight190 g
Length160.9 mm
Body diameter29.5 mm
Head diameter40 mm
Materialaluminium alloy with HAIII hard-anodized finish

The TH20 Guardian is generally comfortable to hold for a long time. The best flashlight size depends on personal preference. The aluminium body of the TH20 Guardian has excellent thermal conductivity. The HAIII coating is often matte or textured. This flashlight features a captivating black color.

Jetbeam TH20 Guardian / 3

System, LED, lens, reflector

EmitterCree XHP70.2 LED
Color temperature6500 K
Lenstoughtened AR coated glass
Switchmechanical rear, electronic rear

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. If you need long-range light, get a flashlight with a smooth reflector. The AR coating on the lens maximizes light transmission. The TH20 Guardian uses multiple switches. They allow for one-handed operation. The electronic switches may have a higher chance of standby drain. Mechanical switches offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. A simple press or click of the rear switch turns the flashlight on or off.

Jetbeam TH20 Guardian / 1

Performance, flux, intensity, throw

Flux3980 lm
Intensity29000 cd
Throw341 m
CD/LM factor7.29

The TH20 Guardian flashlight has 3980 lm. It will provide an exceptionally bright and powerful beam of light. The TH20 Guardian flashlight has 29000 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.

Jetbeam TH20 Guardian / 2

Software, user interface, modes

Modes4 modes
Mode memoryno
Ramping modeno

A flashlight's modes are different output settings or brightness levels. Designers created the strobe function to produce a disorienting or attention-grabbing effect.

Features, battery, protections

Battery1 x 21700 Li-Ion battery
Battery indicatorno
Charger portUSB Type-C
Thermal regulationyes

The TH20 Guardian flashlight's power source is 1 x 21700 Li-Ion battery. USB rechargeable flashlights are more popular now. The Low Voltage Protection helps save the battery's capacity. The thermal protection feature helps prevent overheating. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period.

Accessories, package contents

Package contents21700 battery
USB Type-C cable
nylon holster
spare o-ring
spare rubber cover

The included battery is picked to match the power needs of the TH20 Guardian flashlight. The flashlight package is thoughtful, it has a holster. The lanyard of the TH20 Guardian protects the flashlight from accidental damage. When using spare O-rings, follow the maker's instructions.

Official sitehttp://www.jetbeamlight.com/

Conclusion, pros and cons

This Jetbeam 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.


  • lightweight
  • aluminium body
  • AR coated lens
  • tactical switch
  • strong flux
  • super bright
  • multiple modes
  • tactical strobe
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • protective holster


  • cool light
  • no mode memory
  • no battery indicator
  • no auxiliary LEDs
  • non-magnetic


Jetbeam TH20 Guardian / TH20GU photo 1.
Jetbeam TH20 Guardian / TH20GU photo 2.
Jetbeam TH20 Guardian / TH20GU photo 3.
Jetbeam TH20 Guardian / TH20GU photo 4.
Jetbeam TH20 Guardian / TH20GU photo 5.
Jetbeam TH20 Guardian / TH20GU


According to our statistics, the Jetbeam TH20 Guardian flashlight was most often compared on our site with the following flashlights.

If there’s information about the Jetbeam TH20 Guardian 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.