Nitecore E4K


In Stock
Product thumb
Nitecore E4K


  • Length:

    117.56 mm / 4.62"

  • Body Diameter:

    25.8 mm / 1.02"

  • Tail Diameter:

    28.1 mm / 1.11"

  • Head Diameter:

    28.6 mm / 1.13"

  • Weight:

    80 g / 2.82 oz.


  • Material:

    Aluminium alloy

  • LED:

    4 x Cree XP-L2 V6

  • Switch:

    Single side switch

  • Lens:

    Optical lenses with scratch resistant coating

  • Reflector:



  • Rechargeable:


  • Special Modes:

    Beacon, SOS and strobe

  • Maximum Output:

    4400 lumens

  • Maximum Beam Distance:

    211 meters

  • Water Resistant:



  • Included:

    1 x 21700 (with built-in USB-C charging port)

  • Compatible:

    1 x 21700 / 2 x CR123 / 2 x RCR123 (16340)

Product thumb
Nitecore E4K

1 Review

5.0 Overall rating




The Nitecore E4K is a compact palm sized LED torch with a very high output of up to 4400 lumens! Equipped with four Cree XP-L2 V6 LEDs that produce a wide even beam pattern with a range of up to 211 meters.

The E4K measures in at just under 12cm long and weighs only 80 grams making it an ideal every day carry torch that can easily be kept inside a pocket. The body is CNC machined as a single piece and provides excellent heat dissipation while being strong and light weight.

A USB rechargeable 21700 5000mAh Li-ion battery (NL2150HPR) is included in the box along with a USB-C charging cable. Also included is a battery magazine so the E4K can also be powered by CR123A batteries (not included). These are ideal when recharging  is not an option.

Operation is via a single side switch with direct access to ultra-low and turbo brightness settings. The E4K can also be set into one of two user modes: Tactical, which offers direct access to strobe and Daily Mode, with direct access to turbo (both by triple clicking the side switch). Inside the switch is a blue indicator light that flashes to display the remaining battery voltage.

Brightness Levels, Runtimes and Range:
Turbo: 4400 lumens - 30 minutes - 211 meters
High: 1050 lumens - 3 hours 15 minutes - 105 meters
Mid: 320 lumens - 7 hours 30 minutes - 57 meters
Low: 50 lumens - 45 hours runtime - 21 meters
Ultralow: 2 lumens - 700 hours runtime - 3 meters

Plus Strobe (4400 lumens), SOS (4400 lumens) and Beacon (4400 lumens).

Mode memory ensures  the E4K will automatically turn on in the last used brightness setting.

ATR (Advanced Temperature Regulation) regulates the output of the Nitecore E4K according to the working condition and ambient environment to maintain optimal performance and prevents damage to the LED from overheating.

Waterproof to IP68 (2 meter submersible).

Nitecore E4K Includes: Nitecore NL2150HPR 5000mAh 21700 li-ion battery, USB-C charging cable, CR123 battery magazine,  two-way pocket clip, belt holster, wrist lanyard and spare o-ring.