NITECORE E4K 4400 Lumen EDC Flashlight with 5000mAh USB-C Rechargeable User Manual

NITECORE E4K 4400 Lumen EDC Flashlight with 5000mAh USB-C Rechargeable

Note

• Please remove the insulation film before the first use.
• When the flashlight is not in use, please loosen the tail cap for more than one turn to prevent accidental activation.

Warranty Service

All NITECORE® products are warranted for quality. Any DOA / defective product can be exchanged for a replacement through a local distributor/dealer within 15 days of purchase. After that, all defective / malfunctioning NITECORE® products can be repaired free of charge within 60 months
from the date of purchase. Beyond 60 months, a limited warranty applies, covering the cost of labor and maintenance, but not the cost of accessories or replacement parts.
The warranty will be nullified if

1. the product(s) is/are broken down, reconstructed and/or modified by unauthorized parties;
2. the product(s) is/are damaged due to improper use; (e.g. reversed polarity installation)
3. the product(s) is/are damaged due to battery leakage.
   For the latest information on NITECORE® products and services, please contact a local NITECORE® distributor or send an email to service@nitecore.com

All images, text and statements specified herein this user manual are for reference purpose only. Should any discrepancy occur between this manual and information specified on www.nitecore.com0, 0Sysmax Innovations Co., Ltd. reserves the rights to interpret and amend the content of this document at any time without prior notice.

Features

• Utilizes 4 x CREE XP-L2 V6 LEDs with a max output of 4,400 lumens
• An optical system combined with crystal coating and “Precision Digital Optics Technology” (PDOT)
• Max peak beam intensity of 11,100cd and max throw of 211 meters
• Highly efficient constant current circuit provides a stable output for up to 700 hours.
• 2-stage side switch specially designed for outdoor applications controls 5 brightness levels and 3 special modes
• STROBE Mode uses randomly changing frequencies for stronger dizzying effects
• A power indicator beneath the side switch indicates the remaining battery power
• The power indicator can display the battery voltage (±0.1V)
• NITECORE 21700 rechargeable Li-ion battery (NL2150HPR 5,000mAh) included
• Incorporated Advanced Temperature Regulation (ATR) module (Patent No. ZL201510534543.6)
• Electronic reverse polarity protection
• Optical lenses with double-sided scratch resistant coating
• Constructed from aero grade aluminum alloy
• HA III military grade hard-anodized finish
• Waterproof in accordance with IP68 (2 meters submersible)
• Impact resistant to 2 meters
• Tail stand capability

Specifications

• Length: 117.56mm (4.63″)
• Head Diameter: 28.6mm (1.13″)
• Tube Diameter: 25.8mm (1.02″)
• Tail Diameter: 28.1mm (1.11″)
• Weight: 80g (2.82oz)

Accessories

NITECORE 21700 Rechargeable Li-ion Battery (NL2150HPR 5,000mAh), USB-C Charging Cable, Clip, Lanyard, Spare O-ring, Holster, CR123 Battery Magazine

Battery Options

(Recommended)
Primary Lithium Battery| CR123| 3V| Y (Compatible)
Rechargeable Li-ion Battery| RCR123| 3.6V/3.7V| Y (Compatible)
21700 Rechargeable Li-ion Battery (Output Below 15A)| 21700| 3.6V/3.7V| N (Incompatible)
18650 Rechargeable Li-ion Battery| 18650| 3.6V/3.7V| N (Incompatible)

Technical Data

Lumens

| 1,050

Lumens

| 320

Lumens

| 50

Lumens

| 2

Lumens

| 4,400

Lumens

| 4,400

Lumens

| 4,400

Lumens

 | *30min| 3h 15min| 7h 30min| 45h| 700h| ─| ─| ─
 | 211m| 105m| 57m| 21m| 3m| ─| ─| ─
 | 11,100cd| 2,800cd| 810cd| 110cd| 3cd| ─| ─| ─
 | 2m (Impact Resistance)
| IP68, 2m (Waterproof and Submersible)

Note: The stated data is measured in accordance with the international flashlight testing standards ANSI/PLATO FL 1-2019, using 1 x 21700 Li-ion battery (5,000mAh) under laboratory conditions. The data may vary in real world use due to different battery usage or environmental conditions.

• The runtime of TURBO is tested without the temperature regulation.
• TURBO Availability: The TURBO level is only accessible when using a 21700 rechargeable Li-ion battery with an output over 15A. It is inaccessible when using CR123/RCR123 batteries.

Battery Installation

Operating Instructions

Battery Installation
Insert the battery(s) as illustrated and screw to tighten the tail cap.
Note: After the battery insertion, the power indicator beneath the switch will flash to indicate the battery voltage. Please refer to the “Power Indication” section of this manual for more details.

Warnings:

1. Ensure the battery(s) is/are inserted with the positive end towards the head. The product will not work if the battery(s) is/are incorrectly inserted.
2. Please use the battery magazine when using 2 x CR123 batteries to avoid battery rattling and to ensure a stable contact.
3. CAUTION! Possible dangerous radiation! Don’t look into the light! May be dangerous for your eyes.
4. When the power level is low, please stop using the product and recharge the battery as soon as possible to prevent damage to the battery.
5. When the product is kept in a backpack or left unused for prolonged time, please remove all batteries to prevent accidental activation or battery leakage.
6. DO NOT submerge the light into any liquid when it is hot. Doing so may cause irreparable damage to the light due to the difference of air pressure inside and outside of the tube.

On / Off
The E4K has a 2-stage side switch which enables different functions according to how hard it is pressed.
On: When the light is off, full press the Power Button to turn it on and access the memorized brightness level.
Off: When the light is on, full press the Power Button to turn it off.

Brightness Levels
When the light is on, half press the Power Button to cycle through the following brightness levels: ULTRALOW – LOW – MID – HIGH – TURBO.
(The E4K has memory function. When reactivated, it will automatically access the previous memorized brightness level.)
Momentary Access to TURBO

• When the light is on, half press and hold the Power Button to momentarily access TURBO. Release to return to the previous brightness level.
• When the light is off, full press and hold the Power Button to momentarily access TURBO. Release to turn it off.

Direct Access to ULTRALOW
When the light is off, half long press the Power Button to directly access ULTRALOW.

Special Modes (STROBE / BEACON / SOS)

• When the light is on, full long press the Power Button to access the STROBE Mode.
• When the STROBE Mode is on, half press the Power Button to cycle through the following special modes: BEACON – SOS – STROBE.
• When one of the special modes is on, full press the Power Button to exit special modes and turn off the light.

Power Indication

• When the battery is inserted, the power indicator beneath the switch will flash to show the battery voltage (±0.1V). For example, when the battery voltage is at 4.2V, the power indicator will flash 4 times followed by a 1.5-second pause and 2 more flashes. Different voltages represent the corresponding remaining battery power levels:

Note: When using two CR123/RCR123 in series, the indicator will show the average voltage between the two batteries.

• When the light is off, half press the Power Button and the power indicator will flash to indicate the remaining power:
  1. Flashing three times indicates that the power is above 50%;
  2. Flashing twice indicates that the power is below 50%;
  3. Flashing once indicates that the power is below 10%.

ATR (Advanced Temperature Regulation)
The integrated ATR technology regulates the output of the E4K according to the working condition and ambient environment to maintain the optimal performance.

Changing Batteries
The batteries should be replaced when the output appears to be dim or the flashlight becomes unresponsive due to low power.

Maintenance
Every 6 months, threads should be wiped with a clean cloth followed by a thin coating of silicon-based lubricant.

Thanks for purchasing NITECORE!

SYSMAX Innovations Co., Ltd.

TEL: + 86-20-83862000
FAX: 86-20-83882723
E-mail: info@nitecore.com
Web: www.nitecore.com
Address： Unit 6355, 5/F, No. 1021 Gaopu Road, Tianhe District, Guangzhou, 510653, Guangdong, China

References

• NITECORE 奈特科尔
• NITECORE

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