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Nitecore i4000R 4400lm review: Pros and Cons

4 x Cree XP-L2 V6 LEDs
4400 lm output
13300 cd intensity
1 x special 21700 Li-Ion battery

The Nitecore i4000R (I4000R) released in 2019. It uses 4 x Cree XP-L2 V6 LEDs, SMO reflector and 1 x special 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 4400 lm output, 13300 cd intensity, and a beam distance of 231 m.

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 Nitecore i4000R, then tell us.

Nitecore i4000R / I4000R

The i4000R 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 5 modes of lighting. You don't have to cycle through many modes to find what you want. The i4000R's mode memory makes the flashlight start in your preferred or needed mode. The strobe function produces a high-frequency flashing light pattern. It disorients or distracts potential threats or aggressors. The flashlight is rechargeable easily via USB port.

Nitecore i4000R (I4000R) specifications

BrandNitecore
Namei4000R
TypeI4000R
Rating
Rated 3 / 5 based on 1412 user votes.
Launch2019
Formflashlight

The i4000R flashlight enhances safety. It illuminates hazards and improves visibility in low light.

Nitecore i4000R / 1

Body

Weight135 g
Length159 mm
Head diameter32.6 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The flashlight weighs 135 g. It is generally comfortable to hold for a long time, and it is also easy to carry in pockets or bags. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. The aluminium body of the i4000R has a reputation for being durable and strong. It offers excellent resistance to impacts, scratches, and corrosion.

The body of i4000R flashlight treated with a Type III hard-anodized, anti-abrasive finish. The i4000R flashlight is available in black.

Nitecore i4000R / 3

System

Emitter4 x Cree XP-L2 V6 LEDs
Color temperature5000 K
ReflectorSMO
LensAR coated glass
Switchmechanical rear, mode pedal rear

Lighting professionals trust Cree LEDs. Cree LEDs have gained a strong reputation for quality and performance. The color temperature choice depends on the light's use and personal taste. The smooth reflector creates a well-defined hotspot at the center. This hotspot provides a concentrated beam for long-range use. The coating is thin and applied to the lens surface. It cuts reflections and boosts light transmission.

The i4000R flashlight has multiple switch options. They can be useful, adding versatility and convenience to using the flashlight. Mechanical switches are usually robust. They resist wear and tear and work in many environments. The rear switch of the i4000R is usually operated with the thumb or finger. This makes it easy to reach and use.

Nitecore i4000R / 4

Performance

Flux4400 lm
Intensity13300 cd
Throw231 m
CD/LM factor3.02

The i4000R flashlight has 4400 lm. It will provide an exceptionally bright and powerful beam of light. The i4000R flashlight has 13300 cd. It can light objects at greater distances. 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.

Nitecore i4000R / 2

Software

Modes5 modes
Mode memoryyes
Ramping modeno
Strobeyes
SOS/Beaconno

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. Designers created the strobe function to produce a disorienting or attention-grabbing effect.

Features

Battery1 x special 21700 Li-Ion battery
Battery indicatoryes
Charger portUSB Type-C
LVPyes
Thermal regulationyes
ProtectionIP68
AUX LEDsno
Magneticno

The i4000R flashlight utilizes 1 x special 21700 Li-Ion battery as its power source. The battery indicator prevents surprise power failures. It ensures the flashlight is ready when needed. USB rechargeable flashlights are more popular now. They are popular because they are convenient and sustainable. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge, so it doesn't need protected cells.

The i4000R has thermal protection feature. These mechanisms track and regulate the flashlight's temperature as it operates. The "6" in the IP68 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The "8" in the IP68 rating means the highest level of protection. It is against water ingress.

Accessories

Package contentsCR123 battery magazine
NTH20 tactical holster
USB Type-C cable
clip
lanyard
spare o-ring
special 21700 battery

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. The package includes a holster to safely store your flashlight. The clip provides flexibility in how you carry your flashlight. The lanyard of the i4000R protects the flashlight from accidental damage. It does this by stopping it from falling or hitting the ground. 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 Nitecore i4000R flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Nitecore i4000R pros and cons

This Nitecore 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.

Pros

  • lightweight
  • aluminium body
  • warm light
  • AR coated lens
  • tactical switch
  • strong flux
  • multiple modes
  • mode memory
  • tactical strobe
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof
  • battery included
  • protective holster
  • clip

Cons

  • no auxiliary LEDs
  • non-magnetic

Nitecore i4000R (I4000R) pictures

Nitecore i4000R / I4000R photo 1.
Nitecore i4000R / I4000R photo 2.
Nitecore i4000R / I4000R photo 3.
Nitecore i4000R / I4000R photo 4.
Nitecore i4000R / I4000R photo 5.
Nitecore i4000R / I4000R

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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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