EA11
Features
• Utilizes CREE XM-L2 (U2) LED
• Maximum output of 900 lumens
• Boasts a peak beam intensity of 9000 cd and a throw distance of up to 190 meters
• Dual-switch design ensures unprecedented ease of use
• Secondary red LED provides constant / flashing illumination
• Indicates battery voltage with a red flashing LED (accurate to 0.1V)
• High efficiency constant current circuit enables maximum runtime of 10 hours
• A micro-textured reflector offers wide angle lighting
• Direct access to ultra-low and turbo output
• Reverse polarity protection prevents damage from an incorrectly inserted battery
• Detachable two-way anti-rolling clip
• Toughened ultra-clear mineral glass with anti-reflective coating
• Constructed from aero grade aluminum alloy
• HAIII military grade hard-anodized
• Waterproof in accordance with IPX-8 (2 meters submersible)
• Impact resistant to 1.5 meters
• Tail stand capability
Dimensions
Length: 3.62” (92mm)
Head diameter: 1” (25.4mm)
Tail diameter: 0.79” (20mm)
Weight: 1.87oz (53 gram) (without battery)
Battery Options
* To ensure the best user experience performance-wise, it is recommended to use Nitecore
batteries.
Output & Runtime
access ultra-low mode (1 lumen).
With the light switched off, press and hold the MODE button for more than one second to access
turbo mode (900 lumens).
NOTE: When in turbo mode, the EA11 will adjust output luminance automatically within 3 minutes
of use to prevent overheating and extend battery longevity.
Red Light / Signal Light Mode
With the light switched off, press the MODE button to enter red light mode. In this mode, the
secondary red LED will illuminate steadily.
When in red light mode, press and hold the MODE button for more than one second to enter
signal light mode. In this mode, the secondary red LED will flash to serve as a signal light.
Simply press any button to exit the red light /signal light mode.
Special modes (Strobe/Location/SOS)
With the light switched on, press and hold the MODE button for more than one second to enter
strobe mode. When in strobe mode, press and hold the MODE button for more than one second
again to cycle through Location Beacon, SOS and Strobe modes. To exit, simply press the MODE
button to resume the last used brightness level, or press the ON/OFF button to switch the
light off.
Strobe Ready
With the light switched off, press the MODE button twice in quick succession to enter Strobe
mode. To exit, simply press any button.
Lockout / Unlock
With the light switched on, press and hold the ON/OFF button and the MODE button
simultaneously for over one second to switch the light off and enter lockout mode. In lockout mode,
the EA11 conserves battery power for over 77 days; the two buttons on EA11 will not work, thus
preventing accidental activation of the light. To exit lockout mode, simply press and hold the
ON/OFF button and the MODE button simultaneously for over one second again.
NOTE:
1. Upon entering lockout mode, the secondary red LED will flash to indicate battery voltage. Please
refer to the “Power Tips” section for more details.
2. When the EA11 is kept in a backpack or left unused for extended periods, Nitecore recommends
the tailcap is loosened or the battery is removed to cut off the power entirely, thus preventing
accidental activation of the flashlight or battery leakage.
Power Tips
After battery installation or lockout mode activation, the secondary red LED will flash to indicate
battery voltage (accurate to 0.1V). For example, when battery voltage is at 1.3V, the red LED will
flash once, followed by a one second pause and another 3 flashes. Different voltages represent
the corresponding remaining battery power levels:
Changing / Charging Batteries
Batteries should be replaced or recharged when 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. Any defective / malfunctioning NITECORE®
product can be repaired free of charge for a period of 60 months (5 years) from the date of
purchase. Beyond 60 months (5 years), 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
※All images, text and statements specified herein this user manual are for reference purpose only.
Should any discrepancy occurs between this manual and information specified on
www.nitecore.com, information on our official website shall prevail. Sysmax Industry Co., Ltd.
reserves the rights to interpret and amend the content of this document at any time without prior
notice.
NOTICE:
The stated data has been measured in
accordance with the international
flashlight testing standards
ANSI/NEMA FL1, using 1 x high
quality IMR 14500 battery (3.7V,
650mAh) or 1 x high quality AA battery
(1.2V, 2500mAh) under laboratory
conditions. The data may vary in
real-world use due to different battery
usage or environmental conditions.
Operating Instructions
Battery installation
Insert 1 x AA battery or 1 x IMR 14500 battery as illustrated
NOTE: After loading the battery, the secondary red LED will
flash to indicate battery voltage. Please refer to the “Power
Tips” section of this manual for details.
WARNING:
1. Please stop using and remove a depleted IMR14500 battery
to avoid potential battery damage.
2. Ensure the battery is inserted with the positive (+) end
pointing towards the head. The EA11 will not be operational
with an incorrectly inserted battery.
On / Off Operation
To switch ON: Press the ON/OFF button once.
To switch OFF: Press the ON/OFF button once again to switch the light off and enter standby mode
Standby Mode
With the light switched on, press and hold the ON/OFF button for more than one second to switch the
light off and activate the secondary red LED to flash once every three seconds, thus helping the user
locate the EA11 in dark conditions. When using an IMR 14500 battery, the EA11 will operate for up to 4
consecutive days with the red LED on, or remain on standby for more than 77 days with the red LED off.
Brightness Levels
With the EA11 switched on, press the MODE button repeatedly to cycle through the following
brightness levels: ultra-low, low, medium, high and turbo. Once a brightness level is selected it will
be saved and resumed when the EA11 is reactivated.
Direct Access to Ultra-low/Turbo Output
With the light switched off, press and hold the ON/OFF button for more than one second to
Accessories
Quality holster, clip, lanyard,
spare o ring
®
The All-Round Flashlight Expert
Thanks for purchasing NITECORE!
User Manual
SYSMAX Industry Co., Ltd.
TEL: +86-20-83862000
FAX: +86-20-83882723
Web: www.nitecore.com
Address: Rm1401-03, Glorious Tower, 850 East Dongfeng Road, Guangzhou, China 510600
TYPE
Nominal voltage
Compatible
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
Y
Rechargeable Li-ion battery
14500 3.7V
Y
IMR14500 Rechargeable Li-ion battery
IMR14500 3.7V
Y
TURBO HIGH MID
LUMENS
300
LUMENS
900
LUMENS
160
30
min
1
h
30
min
45
min
LUMENS
90
LUMENS
160
LUMENS
40
45
min
2
h
15
min
2
h
45
min
LOW
LUMENS
70
2
h
30
min
LUMENS
17
3
h
45
min
LOWER
LUMEN
1
12
h
LUMEN
1
10
h
190m
(Beam Distance)
9000cd
(Peak Beam Intensity)
IPX-8, 2m
(Waterproof AND Submersible)
1.5m
(Impact Resistant)
AA
IMR14500
4.2V3.5V 3.7V 3.9V
Low Power Full Power
1.4V1.1V 1.2V 1.3V
Low Power Full Power
IMR 14500:
AA:
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