Trustfire E3R flashlight review

LatticeBright XM2 U3 LED
1000 lm output
12000 cd intensity
1 x 18650 Li-Ion battery

The Trustfire E3R flashlight was released in 2019. It uses LatticeBright XM2 U3 LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1000 lm output, 12000 cd intensity, and a beam distance of 219 m.

Curious to know if this Trustfire flashlight is top-notch? Stay tuned for the answer!

Table of Contents

  • Trustfire E3R 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 Trustfire E3R, then tell us.

Trustfire E3R / E3R

The E3R 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 3 modes of lighting. The E3R 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. The E3R may also support other charging methods. These include solar panels or hand-cranked mechanisms.

Trustfire E3R specifications

Rated 3 / 5 based on 1454 user votes.

This Trustfire flashlight is compact and handheld. It is easy to carry and maneuver.

Trustfire E3R / 6

Body, materials, weight, colors

Weight61 g
Length114.5 mm
Body diameter25.4 mm
Head diameter25.4 mm
Materialaluminium alloy with HAIII hard-anodized finish

The 61 g flashlight may not provide the same level of brightness or features as larger models. The length of a flashlight can affect how it feels in your hand and how you can grip and maneuver it. The aluminum bodies can be anodized. This adds a protective layer and a wide range of color options for flashlight bodies. The body of E3R flashlight treated with a Type III hard-anodized, anti-abrasive finish. This flashlight features a captivating black color.

Trustfire E3R / 5

System, LED, lens, reflector

EmitterLatticeBright XM2 U3 LED
Color temperature6500 K
Switchelectronic side

The emitter of E3R manufactured by LatticeBright, a Chinese LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. If you need long-range light, get a flashlight with a smooth reflector. It will have more throw distance. The electronic switches may have a higher chance of standby drain.

Trustfire E3R / 1

Performance, flux, intensity, throw

Flux1000 lm
Intensity12000 cd
Throw219 m
CD/LM factor12

The 1000 lm output of E3R provides great flexibility. You can adjust the brightness to fit different needs. The E3R flashlight has 12000 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.

Trustfire E3R / 3

Software, user interface, modes

Modes3 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.

Trustfire E3R / 4

Features, battery, protections

Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
Thermal regulationyes

The E3R flashlight's power source is 1 x 18650 Li-Ion battery. 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 built-in charger allows for convenient and versatile charging. You can use various USB power sources to recharge the battery. The Low Voltage Protection helps save the battery's capacity. It stops it from reaching a critically low voltage.

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.

Trustfire E3R / 2

Accessories, package contents

Package contents18650 battery
2 x spare o-rings
microUSB cable

The included battery is picked to match the power needs of the E3R flashlight. This ensures reliable and efficient operation. When you clip the flashlight to a good spot, you can angle or position it. This will give you hands-free light. 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 E3R 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 Trustfire 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
  • side switch
  • adequate performance
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • clip


  • cheap LED
  • cool light
  • no auxiliary LEDs
  • non-magnetic


Trustfire E3R / E3R photo 1.
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Trustfire E3R / E3R

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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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