NITECORE i4000R 4400 Lumen USB-C Rechargeable Tactical Flashlight


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NITECORE i4000R At-A-Glance

  • 4x high performance CREE LEDs for 4,400 lumen max output
  • Max beam intensity of 13,300cd and beam throw of 251 yards
  • Custom 5000mAh rechargeable 21700 battery
  • Protected USB-C charging port and indicator
  • Dual tail switches for intuitive controls and easy operation
  • STROBE READY technology for instant access to strobe

Included in the Box

  • NITECORE i4000R Flashlight
  • NL2150HPi 5000mAh Custom 21700 Rechargeable Battery
  • USB-C Charging Cable
  • Pocket Clip
  • Lanyard
  • Spare O-ring
  • CR123 Battery Magazine
  • NTH20 Tactical Holster

High Power Tactical Flashlight

Made with law enforcement and military personnel in mind, the NITECORE i4000R draws on the latest technology to deliver an impressive 4400 lumen max output at 251 yards of reach. Enjoy single-handed operation with dual tail switches capable of momentary access and quick access to turbo and strobe. Press and hold the mode switch to access the strobe. Easily cycle through 4 brightness levels by short pressing the mode button while the light is on. Mode memory ensures that the same output is activated without surprise when the flashlight is turned back on.

USB-C Rechargeable

The i4000R runs on a high capacity 5000mAh battery, ready for long operations and high impact scenarios. Fast charge the battery by rotating the waterproof port cover and inserting the included USB-C charging cable. When charging is done, the tail power indicator will stop flashing.

Ideal Duty Light

Designed for safety, search and rescue operations, and law enforcement activities, the compact, 6.26-inch i4000R fits nicely in the included NTH20 tactical holster for quick draw. Carry the light with ease by attaching the holster to a duty belt or any standard MOLLE system. With Advanced Temperature Regulation (ATR), an IP68 waterproof rating, and a 1 m impact resistant rating, the NITECORE i4000R is a must-have duty light for daily tasks and high impact tactical operations.


Maximum Brightness 4400 lumens
Peak Beam Distance 251 yards
Peak Beam Intensity 13300 cd
IP Rating IP68 – 2m submersible
Impact Resistance 1 m
Dimensions L-6.26″xW-1.28″xH-1.1″
Weight 4.76oz


Turbo 4400 lumens 30m
High 1100 lumens 2h 15m
Mid 330 lumens 7h 45m
Low 50 lumens 40h
Ultralow 2 lumens 380h
Strobe 4400 lumens

Compatible Power Sources

NL2150HPi 21700 i Series 3.6V Y (Compatible)
Primary Lithium Battery 2x CR123 3V Y (Compatible)
Rechargeable Primary Lithium Battery 2x RCR123 3.6V Y (Compatible)
18650 Conventional 18650 3.6V N (Incompatible)
21700 Conventional 21700 3.6V N (Incompatible)