• Product Code: KR4 TI
  • Availability: In Stock
  • Ex Tax: $88.69

Available Options

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.


• 5A Constant Current + Direct Drive

• Pocket clip and lanyard ring are both included by default

• Discrete knurling

• Grippy anodized surface

• 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: 95g (without battery)

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

OTF lumen output at start-up:

XP-L HI : 4300lm

SST-20 6500K/5000K: 4200lm

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

E21A LED: 1200lm

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

Source code is available from

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