EMISAR D4K 21700 ALL COPPER LED FLASHLIGHT

Metal button is glued by deault, if you prefer not to glue it, please send us a request.

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

Emisar D4K puts a high lumen output but generates a lot of heat at the same time, please acknowledge before purchasing. Unprotected, flat top battery works only (not included in the price), D4K 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 (1.2A per one for the UV version). The boost driver is not compatible with Nichia E21A, Nichia E17A or the mule versions of the flashlight. 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 21700 batteries such as Molicel P42A, P45B, Samsung 50S, 40T, or Vapcell T50. Please note that this flashlight is not a toy and must be operated responsibly.

 

Features:

• CNC machined from copper

• High end custom made N244M optic.

• Unihead construction

• High lumen output and low moon output

• Ramping interface

• Electronic soft touch 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)

• Weight:165g

• Dimensions: 103mm(length) * 28mm(head) * 26.5mm(body)

 

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

NTG35 5000K/4200K: 2900lm

NTG35 2700K: 2500lm

NTG35 1800K: 2000lm

 

519A 5700K/5000K DOMED: 2600lm

519A 4500K/4000K DOMED: 2400lm

519A 3500K/2700K DOMED: 2200lm

519A 1800K: 2000lm

 

519A 5700K/5000K DEDOMED(about 1300K CCT reduce): 2300lm

519A 4500K/4000K DEDOMED (about 1200K CCT reduce): 2100lm

519A 3500K/2700K DEDOMED (about 1200K CCT reduce): 1800lm

 

SST-20 6500K: 3200lm

SFT-25R 6500K/5000K: 3600lm

 

OTF Lumen output at start up for Linear + FET driver

519A 5700K/5000K : 3800lm

519A 4500K/4000K: 3500lm

519A 3500K/2700K: 3200lm

519A 1800K: 2600lm

 

NTG35 5000K/4200K: 4200lm

NTG35 2700K: 3600lm

NTG35 1800K: 2800lm

SST-20 6500K: 4200lm

SFT-25R 6500K/5000K: 4800lm

 

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

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

Polished raw copperAntique copperQuad 365nm UV & reflectors with ZWB2 filters