Noctigon KR4 QUAD TAIL E-SWITCH 18650 EDC LED FLASHLIGHT

Noctigon KR4 QUAD TAIL E-SWITCH 18650 EDC LED FLASHLIGHT

Quick description:

KR4 Quinta EDC

HOST COLOR*

STAINLESS STEEL PARTS FINISH*

LED & Tint*

Add one tritium vial in the tailcap

Please choose

$39.68
  • NTG35 LEDs are recommended for good tint, beam pattern, high CRI and free of greenish tint.

    Noctigon KR4 puts a high lumen output but generates a lot of heat at the same time, please acknowledge before purchasing. Unprotected, flat top 18650 battery works only (not included in the price), KR4 does not work with protected battery.

    The Lume X1 boost driver upgrade is available for the Luminous SST-20, SFT-25R, Nichia 219B R9080, Nichia 519A R9080, NTG35, UV LEDs etc, 3 Amps per LED (UV LED is 1.2 per one). The boost driver is not compatible with Nichia E21A, Nichia E17A. Note that the boost driver output is limited in comparison to the default driver, it is more efficient (90-95%) with a longer running time and less heat.

    The Lume X1 is a high power driver - for best performance, recommended to use low ESR, high CDR 18650 unprotected cells: - Molicel P30B, P28B, P28A, P26A (grey) - LG HJ2 (lilac), HG2 (brown) - Samsung 20S (blue), 30Q (pink) - BAK N18650CNP (pink) - Murata/Sony VTC5A (green) Please note that this flashlight is not a toy and must be operated responsibly.

     

    Features:

    • Pocket clip and lanyard ring are both included by default

    • Discrete knurling

    • Grippy anodized surface

    • CNC machined from aircraft-grade aluminium

    • High end custom made N244M 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: 95g (without battery)

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

     

    OTF lumen output at start-up for Lume X1 driver:

    NTG35 5000K/4200K: 2900lm OTF / 12,800cd

    NTG35 2700K: 2500lm OTF / 10,200CD

    NTG35 1800K: 2000lm OTF 7,100cd

     

    519A 5700K/5000K DOMED: 2600lm OTF / 8,200cd

    519A 4500K/4000K DOMED: 2400lm OTF / 7,200cd

    519A 3500K/2700K DOMED: 2200lm OTF / 6,100cd

    519A 1800K: 2000lm OTF / 3,800cd

     

    519A 5700K/5000K DEDOMED(about 1300K CCT reduce): 2300lm OTF / 11,000cd

    519A 4500K/4000K DEDOMED (about 1200K CCT reduce): 2100lm OTF / 9,300cd

    519A 3500K/2700K DEDOMED (about 1200K CCT reduce): 1800lm OTF / 6,200cd

     

    SST-20 6500K: 3200lm OTF / 15,200cd

    SFT-25R 6500K/5000K: 3600lm / 20,800cd

     

    OTF Lumen output at start up for Linear + FET driver

    NTG35 5000K/4200K: 4200lm OTF / 17,100cd

    NTG35 2700K: 3600lm OTF / 12,800cd

    NTG35 1800K: 2800lm OTF / 9,200cd

     

    519A 5700K/5000K : 3800lm OTF / 8,900cd

    519A 4500K/4000K: 3500lm OTF / 7,500cd

    519A 3500K/2700K: 3200lm OTF / 6,200cd

    519A 1800K: 2600lm OTF / 4,500cd

     

    519A 5700K/5000K DEDOMED(about 1300K CCT reduce): 2600lm OTF / 13,000cd

    519A 4500K/4000K DEDOMED (about 1200K CCT reduce): 2300lm OTF / 12,300cd

    519A 3500K/2700K DEDOMED (about 1200K CCT reduce): 1900lm OTF / 8,200cd

     

    SST-20 6500K: 4200lm OTF / 17,600cd

    SFT-25R 6500K/5000K: 4800lm / 25,600cd

     

    This product uses free software of Anduril 2, distributed under the terms of the GPLv3.

    Source code is available from https://toykeeper.net/anduril

    Quad 365nm UV & reflectors with ZWB2 filters version. (no aux LEDs)

    Customer Reviews

    • Red
      Bought the same light twice April 12, 2025

      Lost my dark gray linear 219b 4500 and bought the same one to replace it. I never want to leave it at home or use my other flashlights now because of this KR4.

    • Albert
      Noctigon kr4 September 16, 2022

      Awesome flashlight super quality super bright amazing work love it thank you !!!

    • Jeremy
      AWESOME!!! February 26, 2022

      This is my first "Hank light" and it's FREAKING AWESOME! It's opened up a whole new world for me!

    • David
      It's Good, but a bit plain February 3, 2022

      I have this in the same emitter as a other lights, the SST-20 4000K 95CRI and it works great. The driver is better in this light than the D4V2 driver. It runs longer and is more steady in output. More efficient.

      My only complaint with this light is it's a bit plain. It seems like it was designed to fill a tailswitch space in the lineup. It's not really special to me like Hank's other designs. It's sleek, but I like the busy, knurled look of the rest of the lineup. I'm not in love with the button's action either. It seems loose, but it has held up, sp it's just the feel of the button, not the durability.

      Those opinions of mine about the design aside, this is a great light functionally. I find it less useful in the 18350 mode than the D4V2 because it gets weird actuating the tail button with the little tube and there is no magnetic tail which I think really works good on the D4V2.

      Side note, this may be the perfect off-hand light when using another tool in your primary hand. You can hold it up high with your thumb on the button. This is my primary use for this light with the 18650 tube.

      Even a B+ Hank effort is an A++ compared to other brands. This only pales in comparison to the venerable D4V2.

    • Vision
      My best EDC I love it December 14, 2021

      Very nice EDC I love it

    • Mark
      Favorite Floody! April 19, 2021

      Just bought my 4th in a different configuration. Perfect flood for everyday carry. 18350 option makes storage even more convenient, while barely sacrificing power and endurance. I work in a rough environment. Things fall out of pockets and off of ladders all of the time. These lights could probably take a bullet and still work. Kudos! Amazing products!

    • Eric
      Game Changer January 18, 2021

      This light is overbuilt not overpriced. Gives so many options to different uses cases (high cri to spaceship landing light, its possible). Beautiful addition to any edc collection built for daily use.
      Its a pocket lightsaber and you wont regret it(as long as you dont shine it in your eyes!) I Big time recommend this light to anyone ready to carry a high powered beautiful light.

    • River View
      Beautiful light, Tons of lumens September 28, 2020

      Love this light.....KR4- XP-L HI V3 3A
      Finish & fitment
      Firmware
      Aux leds & tritium
      Plus 2000+ lumens on high, 4000+ on turbo
      Damn near perfect.

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