Powertac E9R-G4 flashlight review

Cree XHP50 LED
2550 lm output
9702 cd intensity
1 x 18650 Li-Ion battery

The Powertac E9R-G4 flashlight was released in 2020. It uses Cree XHP50 LED, OP reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 2550 lm output, 9702 cd intensity, and a beam distance of 197 m.

Interested to see if this Powertac flashlight is a hit? Find out soon!

Table of Contents

  • Powertac E9R-G4 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 Powertac E9R-G4, then tell us.

Powertac E9R-G4 / E9RG4

The E9R-G4 is an impressive flashlight that offers both power and reliability. Its robust build and outstanding illumination make it a versatile lighting instrument. This light has 5 modes of lighting. The E9R-G4 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. This USB rechargeable flashlight is small and light. It is easy to carry.

Powertac E9R-G4 specifications

Rated 3 / 5 based on 1473 user votes.

A flashlight provides reassurance and confidence. It is helpful in unfamiliar or dangerous places.

Powertac E9R-G4 / 4

Body, materials, weight, colors

Weight85 g
Length138 mm
Body diameter23 mm
Head diameter25.4 mm
Materialaluminium alloy with HAIII hard-anodized finish

The 85 g flashlight may not provide the same level of brightness or features as larger models. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. The aluminum bodies can be anodized. This adds a protective layer and a wide range of color options for flashlight bodies. HAIII is a specific anodizing process. It creates a thicker and harder oxide layer than regular anodizing. This flashlight features a captivating black color.

Powertac E9R-G4 / 1

System, LED, lens, reflector

EmitterCree XHP50 LED
Color temperature6500 K
Lenstoughtened AR coated glass
Switchelectronic side, mechanical rear

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. It's also less harsh on the eyes than cool, white light. The advantage of the orange peel (OP) reflector is that it can minimize glare and reduce eye strain. The AR coating on the lens maximizes light transmission. This makes the flashlight more effective in darker environments. The E9R-G4 uses multiple switches. The switches' placement and design determine this. They allow for one-handed operation.

The electronic switches may have a higher chance of standby drain. Mechanical switches often offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. Rear switches are common on tactical flashlights. Law enforcement, military, and self-defense personnel use them.

Powertac E9R-G4 / 5

Performance, flux, intensity, throw

Flux2550 lm
Intensity9702 cd
Throw197 m
CD/LM factor3.8

The 2550 lm output of E9R-G4 provides great flexibility. You can adjust the brightness to fit different needs. The E9R-G4 flashlight has 9702 cd. It provides a much brighter and more intense beam. 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.

Powertac E9R-G4 / 3

Software, user interface, modes

Modes5 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. The E9R-G4 flashlight has a strobe function. It produces a rapid, repetitive flashing of light.

Powertac E9R-G4 / 2

Features, battery, protections

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

The E9R-G4 flashlight's power source is 1 x 18650 Li-Ion battery. It provides reliable, long-lasting energy for top performance. A battery indicator lets users see the battery status. It helps them decide when to recharge or replace the battery. A flashlight's USB charger can be very useful. This is especially true in emergencies. In such situations, access to power outlets may be limited. 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.

Accessories, package contents

Package contents18650 battery
magnetic USB charger cable
plastic holster
spare o-ring

The included battery is picked to match the power needs of the E9R-G4 flashlight. This ensures reliable and efficient operation. The flashlight package is thoughtful, it has a holster. It offers you a practical and secure way to store your flashlight. When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. It also gives a more stable hold. 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 E9R-G4 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 Powertac 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
  • OP reflector
  • AR coated lens
  • side switch
  • tactical switch
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included
  • protective holster


  • cool light
  • no auxiliary LEDs
  • non-magnetic


Powertac E9R-G4 / E9RG4 photo 1.
Powertac E9R-G4 / E9RG4 photo 2.
Powertac E9R-G4 / E9RG4 photo 3.
Powertac E9R-G4 / E9RG4 photo 4.
Powertac E9R-G4 / E9RG4 photo 5.
Powertac E9R-G4 / E9RG4 photo 6.
Powertac E9R-G4 / E9RG4

Powertac E9R-G4 comparisons

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Updated: April 25, 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.