NITECORE MH40 User Manual
®
ALL-ROUND Flashlight Expert
Features
• Premium CREE XM-L U2 LED
• Maximum output of 900 lumens
• High efficiency regulation circuit
• Maximum runtime of up to 105 hours
• Intelligent charging circuit with voltage detection charges safely and rapidly
• Integrated charging port is water, dust and impact resistant
• Multiple output modes are conveniently accessed via rapid rotary switch
• User-defined mode provides customized brightness levels plus strobe and SOS modes.
• Intelligent memory function stores preferred brightness setting
• Broad voltage circuit accepts both rechargeable and non-rechargeable Lithium
batteries
• Optimized ultra-precise reflector offers a longer beam distance than competing
products
• Waterproof in accordance with IPX-8 (submersible to two meters)
• Stainless steel bezel ring protects core components from damage
• Toughened ultra-clear mineral glass with anti-reflective coating
• Constructed from aerospace-grade aluminum alloy
• HAIII military grade hard-anodized
• Reverse polarity protection
• Stainless steel titanium-plated clip
• Anti-rolling design
Dimensions
Length: 243mm (9.6”)
Head Diameter: 60mm (2.36”)
Tail Diameter: 25.4mm (1”)
Weight: 311grams (11oz)(without battery)
Accessories
Two Nitecore 18650 Li-ion battery(NL183),
tactical ring, lanyard, charger, clip, holster,
spare switch cap and spare O-ring
Battery Options
Nominal voltage
SIZE
18650 Rechargeable Li-ion battery
Primary Lithium battery *
Rechargeable Li-ion battery *
*Warning: Charge 18650 rechargeable Li-ion batteries only, do not attempt to
charge non-rechargeable batteries, CR123 or RCR123 batteries.
18650 3.7V
CR123 3V
RCR123
3.7V
Compatible
Yes (Compatible and
can be recharged)
Yes (Compatible but can
NOT be recharged)
Yes (Compatible but can
NOT be recharged)
Brightness & Runtime
TURBO HIGH MID LOW
min
5h30
4h30
1
h
490m
60000cd
1.5m
IPX-8, 2m
320
LUMENS
105
LUMENS
min
22
min
17
(Beam Distance)
(Peak Beam Intensity)
(Impact Resistant)
(Waterproof AND Submersible)
4×CR1232×18650
900
LUMENS
1h15
h
h
NOTICE
18
Stated data has been
LUMENS
measured according to the
international flashlight testing
105
h
standards ANSI/NEMA FL1
using two quality NITECORE
70
h
18650 (3.7V 2600mAh)
battery or four SYSMAX
CR123 (3V 1550mAh)
batteries under laboratory
conditions. The data may
vary due to individual usage
habits and environmental
conditions.
User Manual
Charging indicator light
1. Connect the charging cable to the flashlight and the A/C power adapter to the wall
outlet as shown in the adjacent image. Fully charging two depleted 18650 batteries
takes approximately 4 hours.
2. Under normal charging conditions, the red indicator light near the charging port will
blink twice every second.
3. If a problem is detected during the charging process, the MH40 will stop charging
and the red indicator will blink rapidly. This is usually caused by faulty or incorrectly
inserted batteries.
4. When charging is complete, the red indicator will illuminate steadily.
Cautions:
1. The MH40 needs to be turned on
in order to enter charging mode.
2. Do not charge batteries of
different types or different brands
together.
Switching ON/OFF
To switch ON: Press the button on the tailcap until a “click” is heard.
To switch OFF: Press the button on the tailcap a second time until a “click” is heard.
Mode Switching
The Nitecore MH40 has two modes: Turbo and user-defined. These two modes can
be changed by simply tightening and loosening the flashlight head. Turbo provides
100% output while user-defined contains five selectable sub-modes.
Turbo Mode
Turbo mode provides an output of 900 lumens and is accessed when the flashlight is
switched ON with the head lightly tightened. While in this mode, momentary
illumination can be achieved by switching off the flashlight and then half pressing and
holding the switch.
User-Defined Mode
User-defined mode is accessed by slightly loosening the flashlight head. In this mode,
lightly and rapidly pressing the switch will cycle through brightness and other
functions in the following order: “High-Mid-Low-SOS-Strobe”. Pressing the switch all
the way down will save and memorize a desired setting.
Tips: Make NITECORE MH40 your perfect Multitask Hybrid flashlight.
NITECORE MH40 flashlights essentially have two modes: Turbo mode (100% output)
and custom mode. Turbo mode is accessed by tightening the flashlight head while
any of the five customizable modes (strobe, SOS, low, medium and high) are selected
by loosening the head and rapidly pressing the on/off switch to cycle through the
modes. A given mode can be saved by simply turn off the light while in that mode.
Real-world examples include: When used as a flashlight around the home, the head
can be loosened and low level selected in custom mode, providing long runtimes at a
lower light intensity. The same flashlight could then be taken out and used a
law-enforcement duty light, with user-defined mode set in strobe, making it easy to
alternate between turbo mode and strobe with a simple twist of the flashlight head.
Maintenance
Every 6 months, threads should be wiped with a clean cloth followed by a thin coating
of silicon-based lubricant.
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.
Operation instructions
Battery installation (see adjacent diagram)
1. Unscrew the tail cap in a counter-clockwise
direction.
2. Insert two 18650 battery or four CR123
batteries with the positive pole pointing
forward (toward the light head).
NOTES:
1. Insert batteries with the positive (+) end
pointing toward the flashlight head.
2. Do not mix rechargeable and
non-rechargeable batteries.
3. Do not mix batteries of different
types/brands.
4. Do not mix batteries of different charge levels.
Charging Function
The MH40 is capable of charging two protected 18650 Li-ion batteries via the included
DC3.5 charging cable. Simply install the protected 18650 Li-ion cells, plugging one
end of the charging cable into the flashlight and the other end into a adaptor and the
MH40 will take care of the rest.
Thanks for purchasing NITECORE!
Warranty Service
All NITECORE® products are warranted for quality. DOA / defective products can be
exchanged for replacement though a local distributor/dealer within the 14 days of
purchase. After 14 days, all defective / malfunctioning NITECORE® products will be
repaired free of charge for a period of 18 months from the date of purchase. After 18
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 your
national NITECORE® distributor or send an email to service@nitecore.com
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SYSMAX Industry Co., Ltd.
TEL: +86-20-83862000 FAX: +86-20-83882723
E-mail: info@nitecore.com Web: www.nitecore.com
Address： Rm1407-08, Glorious Tower, 850 East Dongfeng Road,
Guangzhou, China 510600
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