Noctigon KR4 Ti+Copper Tail E-Switch 18650 EDC Flashlight

Noctigon KR4 Ti+Copper Tail E-Switch 18650 EDC Flashlight

Quick description:

KR4 TI+Copper

Tailcap type*

LED & Tint*

Please choose

  • Warning: Output will be dependent on cell model (incl.age) and temperature.

    Noctigon KR4 puts a high lumen output but generates a lot of heat at the same time, please acknowledge before purchasing.

    Flat top, unprotected, high drain 18650 battery only (not included in the price)



    5A Constant Current + Direct Drive

    • Pocket clip and lanyard ring are both included by default

    • Discrete knurling

    • CNC machined from Titanium & Copper

    • Efficient UK made Carclo Quad LED optic

    • Anti-reflective coated glass lens

    • Unihead construction

    • High lumen output and low moon output

    • Ramping interface

    • Electronic tail switch

    • Beryllium-Copper springs with 45% IACS superior to stainless steel alloys used for springs with only 2% IACS.

    • Temperature step-down

    • Waterproof and dustproof to IP67 standard (up to 1 meter)

    • Default 18650 body with optional 18350 battery tube

    • Weight: 150g (without battery)

    • Dimensions: 98mm(length) * 29mm(head) * 24mm(body), 68mm (length 18350)


    OTF lumen output at start-up:

    Nichia 219C : 3000lm

    XP-L HI : 4300lm

    SST-20 6500K: 4200lm

    SST-20 5000K: 4200lm

    SST-20 4000K/3000K 95CRI: 3000lm


    This product uses free software distributed under the terms of the GPLv3.

    Source code is available from

    The Mule version is with 8*LEDs, no optic, no aux LEDs, no hotspot, completely flood. For the general users, we recommend to choose regular version (with aux LED, optic etc) instead of the mule version. (send us an email to if you need the mule version)


    Customer Reviews

    • Blie
      My favorite EDC flashlight January 17, 2021

      This little flashlight quickly became my favorite EDC flashlight. The build quality ist superb and the price/performance ratio is outstanding.

      A lot of emitters to choose from - for somebody who isn't familiar with that probably too much. But the customer service is great and helps when you're not sure, what to get.

    • Synt0xx
      Excellent! November 11, 2020

      Very well made flashlights for a reasonable price.
      Anduril UI is great for flashlight geeks and for general usage.
      Very good Emitter choices and fast shipping from China!
      These lights are built to last!

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