NITECORE EA41 User Manual

®

The All-Round Flashlight Expert

Features

· Novel 'Unique Integrated Technology' offers a more sturdy and

lightweight body.

· Utilizes a CREE XM-L2 T6 LED

· Maximum output of up to 960 lumens

· Integrated “Precision Digital Optics Technology” provides extreme

reflector performance

· Boasts a peak beam intensity of 25,000cd and a throw distance of up to

315 meters

· Innovative dual switch offers a user-friendly interface

· Eight rapidly switchable brightness modes to select from

· High efficiency circuit board provides up to 400 hours runtime

· Integrated power indicator light displays remaining battery power

(patented)

· Instant ultra-low or turbo to bring flexibility and convenience

· Reverse polarity protection prevents damage due to incorrectly inserted

batteries

· Stainless steel retaining ring protects the core components from

damage

· Toughened ultra-clear mineral glass with anti-reflective coating

· Constructed from aerograde aluminum alloy

· Sturdy HAIII military grade hard-anodized

· Waterproof in accordance with IPX-8 (two meters submersible)

· Impact resistant to 1.5 meters

· Tail stand capability

EA41

User Manual

Operation Instructions

Battery installation

1. Insert batteries with the positive (+) and negative (-) ends
corresponding to the diagram on the inside of the battery
compartment.

2. Tighten the tail cap by aligning the two gold pins on the inside of the
tail cap with the corresponding holes on the flashlight body and rotate
clockwise.

Dimensions

Length: 117mm (4.6”)
Head diameter: 40 mm (1.57”)
Tube diameter: 41.8mm (1.65”)
Weight: 151g (5.33oz)(without battery)

Accessories

Quality holster, lanyard,
spare O-ring

Battery Options

Nominal voltage

AA 1.5V

AA 1.2V

Usability

Y (Recommended)

Y (Recommended)

Y

N (Banned)

N (Banned)

Primary AA battery

Rechargeable AA battery

Primary AA Lithium battery

Primary LiFePO4 battery

Rechargeable Li-ion battery

SIZE

L91 1.5V

14500 3.2V

14500 3.7V

Output & Runtime

TURBO HIGH MID LOW

960

LUMENS

1

h45min2h45min

NOTICE

The above data has been measured in accordance with the international
flashlight testing standards ANSI/NEMA FL1 using 4 x 1.2V 2400mAh AA
batteries under laboratory conditions. The data may vary slightly during
real-world use due to battery type, individual usage habits and environmental
factors.

NITECORE (SYSMAX) is a member of PLATO, participating in and helping

to develop the ANSI FL1 standard of measurement. Product testing data
is in accordance with these internationally recognized scientific
standards.

510

LUMENS

315m

25000cd

1.5m

IPX-8, 2m

120

LUMENS

12

(Beam Distance)

(Peak Beam Intensity)

(Impact Resistant)

(Waterproof AND Submersible)

40

LUMENS

30

h

LOWER

1

LUMENS

400

h

h

Tips

Inserting batteries in a dark environment: Two of the four battery slots in
the EA41’s battery compartment feature grooves indicating that batteries
should be inserted with the negative (-) ends facing forward, while the two
slots with no grooves require the batteries to be inserted with the positive
(+) ends facing forward. In this way, batteries can be inserted correctly
through tactile feedback alone.

After loading the batteries, the power indicator light will blink to indicate
the battery power. Please refer to the “Power Tips” section of this manual
for details.

WARNING

1. Insert batteries using the image on the inside of the battery
compartment as a reference.

2. Do not mix rechargeable and non-rechargeable batteries.

3. Do not mix batteries of different types/brands.

On/Off Operation

To turn on: press the on/off switch to turn the light on
To turn off: press the on/off switch again to turn the light off

Standby Mode

With the light on, press and hold the on/off switch for more than one
second to turn off the light and activate location beacon function. The
blue power indicator will flash once every three seconds to indicate the
location of the EA41. In this mode, the EA41 can keep running on 4 × AA
batteries for 120 days.

NOTE: With the power indicator off in standby mode, the EA41 can work
for more than 12 months with 4 × AA batteries.

Thanks for purchasing NITECORE!

The All-Round Flashlight Expert

®

Brightness Levels

With the light on, half press the mode switch to cycle through
brightness levels of ultra-low, low, medium, high and turbo. This mode
provides an intelligent memory function to ensure direct access to the
setting last used when reactivated.

Instant ultra-low/turbo

Instant ultra-low: with the light off, press the on/off switch for more than
one second to create ultra-low output of 1 lumen;
Instant turbo: with the light off, press the mode switch for more than
one sencond to create turbo output of 960 lumens.
NOTE: The EA41 will lower its output lumens after 20 minutes of use to
prevent overheating and preserve battery longevity.

Special modes (Strobe/Location/SOS)

With the light on, press the mode switch for more than one second to
enter strobe mode. To cycle through all three modes of Strobe / Location /
SOS, simply press the mode switch for more than one second again.
To exit special modes, simply press the on/off switch .

Strobe ready

With the light off, press the mode switch twice in quick succession to
enter strobe mode instantly. To exit, simply press any button and the light
will turn off.

Lockout/Unlock

With the light turned on, press and hold dual switches for more than one
second until the flashlight is switched off and enters into lockout mode. In
this mode, the EA41 can continue working on one set of batteries for over
12 months.
Lockout mode prevents accidental activation of the flashlight. To exit
lockout mode, simply press and hold dual switches for more than one
second again.

NOTE:

When the EA41 is kept in a backpack or left unused for extended periods,
Nitecore recommends removing the batteries to cut off power, thus
preventing battery drain or accidental activation of the flashlight.

Power Tips

1. With the light on, the blue LED built into the switch will flash once
every two seconds when battery power levels reach 50%. The blue LED
will flash quickly when battery power is close to depletion

2. After battery installation or with the mode switch being pressed when
the light is off, the blue LED built into the switch will blink to indicate
remaining battery power. The power indicators will blink three times
when power levels are above 50%; twice when power levels are below
50%; and once when battery power is close to depletion.

Changing Batteries

Batteries should be replaced when any of the following occurs: The
power indicator blinks rapidly, output appears to be dim or the flashlight
becomes unresponsive.

Maintenance

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

Warranty Service

All NITECORE® products are warranted for quality. DOA / defective
products can be exchanged for replacement through a local
distributor/dealer within the 15 days of purchase. After 15 days, all
defective / malfunctioning NITECORE® products will be repaired free of
charge for a period of 60 months (5 years) 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 is nullified in all of the following situations:

1. The product(s) is/are broken down, reconstructed and/or modified by
unauthorized parties.

2. The product(s) is/are damaged through improper use.

3. The product(s) is/are damaged by leakage of batteries.

For the latest information on NITECORE® products and services, please
contact a local NITECORE® distributor or send an email to
[e-mail]

The Nitecore official website shall prevail in case of any product data
changes.

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SYSMAX Industry Co., Ltd.

TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
Web: www.nitecore.com
Address： Rm1401, Glorious Tower, 850 East Dongfeng

Road, Guangzhou, China 510600

Thanks for purchasing NITECORE!