Nitecore EA41 - User Manual

User Manual
Features
Novel 'Unique Integrated Technology' offers a more sturdy and
lightweight body.
Utilizes a CREE XM-L2 U2 LED
Maximum output of up to 1020 lumens
Integrated “Precision Digital Optics Technology” provides extreme
reflector performance
Boasts a peak beam intensity of 28,276cd and a throw distance of up to
335 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
Dimensions
Length: 117mm (4.6”)
Head diameter: 40 mm (1.57”)
Tube diameter: 41.8mm (1.65”)
Weight: 151g (5.33oz)(without battery)
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.
Thanks for purchasing NITECORE!
Output & Runtime
®
The All-Round Flashlight Expert
TURBO HIGH MID LOW
LUMENS
580
LUMENS
1020
LUMENS
160
LUMENS
50
1 h45min 2 h45min
LOWER
LUMENS
1
400 h 30 h 12 h
335m (Beam Distance)
28276cd (Peak Beam Intensity)
IPX-8, 2m (Waterproof AND Submersible)
1.5m (Impact Resistant)
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.
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.
EA41
SIZE
Nominal voltage
Usability
Primary AA battery
AA 1 5V
Y (Recommended)
Rechargeable AA battery
AA 1 2V
Y (Recommended)
Primary AA Lithium battery
L91 1 5V
Y
Primary LiFePO4 battery
14500 3 2V
Rechargeable Li-ion battery
14500 3.7V
N (Banned)
N (Banned)
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.
Accessories
Quality holster, lanyard,
spare O-ring
Battery Options

Summary

Product Features and Specifications

Dimensions

Details the physical measurements of the flashlight, including length, head diameter, tube diameter, and weight.

Battery Options

Lists compatible battery types, their nominal voltage, and usability for the flashlight.

Output and Runtime

Presents performance data, including lumen output, beam distance, peak beam intensity, and runtime for various modes.

Operation Instructions

Battery Installation

Guidance on correctly inserting batteries, aligning pins, and tightening the tail cap for operation.

Power Tips

Information on how the power indicator light signals battery levels and when to change batteries.

Brightness Levels

Details on how to cycle through brightness modes and the intelligent memory function.

Instant Ultra-low; Turbo

Instructions for quickly accessing the lowest (1 lumen) or highest (1020 lumens) output modes.

Special Modes

How to access and cycle through Strobe, Location, and SOS modes, and how to exit them.

Lockout;Unlock

Procedure to prevent accidental activation and how to re-enable flashlight functions.

Maintenance and Warranty

Maintenance

Recommendations for cleaning and lubricating flashlight threads to ensure longevity.

Warranty Service

Details on product warranty, exchange policy, repair conditions, and nullification circumstances.

Nitecore EA41 Specifications

General

Product color	Black
Flashlight type	Hand flashlight
Housing material	-
Battery type	AA
Battery life (max)	400 h
Number of batteries supported	4
LED type	CREE XM-L2 U2
Lamp type	LED
Light color	White
Luminous flux	1020 lm
Lamps quantity	1 lamp(s)
Flashlight modes	SOS mode, Strobe mode
Luminous intensity	28276 cd
Light beam distance (max)	335 m

Weight and Dimensions

Width	117 mm
Weight	151 g
Head diameter	40 mm