
Nitecore i4000R (2019) review
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.
This light has 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available. The i4000R flashlight is rechargeable easily via USB port.
Table of contents:
Nitecore i4000R (I4000R) specifications
- Brand
- Nitecore
- Name
- i4000R
- Type
- I4000R
- Rating
- Launch
- 2019
- Form
- flashlight
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
- Weight
- 135 g
- Length
- 159 mm
- Head diameter
- 32.6 mm
- Material
- aluminium alloy with HAIII hard-anodized finish
- Colors
- black
System
The emitter of i4000R manufactured by Cree, a US-based LED manufacturing company. The i4000R has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.
- Emitter
- 4 x Cree XP-L2 V6 LEDs
- Color temperature
- 5000 K
- Reflector
- SMO
- Lens
- AR coated glass
- Switch
- mechanical rear, mode pedal rear
Performance
The throw is the calculated 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. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.
- Flux
- 4400 lm
- Intensity
- 13300 cd
- Throw
- 231 m
- CD/LM factor
- 3.02
Software
The i4000R has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again. The i4000R is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate.
- Modes
- 5 modes
- Mode memory
- yes
- Ramping mode
- no
- Strobe
- yes
- SOS/Beacon
- no
Features
The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight can charge the battery with an integrated charger, and it works with any USB power source. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The built-in thermal control automatically adjusts brightness output to prevent overheating.
- Battery
- 1 x special 21700 Li-Ion battery
- Battery indicator
- yes
- Charger port
- USB Type-C
- LVP
- yes
- Thermal regulation
- yes
- Protection
- IP68
- AUX LEDs
- no
- Magnetic
- no
Accessories
It comes with a battery. The battery must be fully charged before you first use your i4000R. The package includes a holster to safely store your flashlight. The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight.
- Package contents
- CR123 battery magazine
NTH20 tactical holster
USB Type-C cable
clip
lanyard
spare o-ring
special 21700 battery
The performance of the Nitecore i4000R flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.
The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Nitecore i4000R, then don’t hesite and signal the problem to us.
Nitecore i4000R (I4000R) pictures

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