®
User Manual
Features
• Utilizes a customized CREE XP-L HI LED
• Maximum output of up to 1000 lumens
• High efficiency current circuit board
• Maximum runtime of up to 31 hours
• Two rapid switching modes suit various user requirements
• User-defined mode allows for customized brightness levels and a multitude of
functions
• Intelligent memory functions
• Anti-rolling design
• Reverse polarity protection
• Broad voltage drive circuit, compatible with rechargeable and
non-rechargeable Li-ion batteries.
• Toughened ultra-clear mineral glass with anti-reflective coating
• Aluminum reflector ensures a smooth and powerful beam
• Aero grade aluminum alloy
• HA III Military grade hard anodized
• Detachable two-way anti-rolling clip
• Purpose-made rhombic knurling for better grip
• IPX-8 standard waterproof (submersible to two meters)
Dimensions
Length: 8.72” (221.5mm)
Head Diameter: 1.97”(50mm)
Tail Diameter: 1”(25.4mm)
Weight: 8.64oz (245g)(without battery)
Thanks for purchasing NITECORE!
Battery Options
The All-Round Flashlight Expert
Operating Instructions
Battery Installation
1. Unscrew the tail cap in a counter-clockwise direction.
2. Insert two 18650 batteries or four CR123 batteries with the positive poles
pointing forward (toward the light head).
Switching ON/OFF
Switch ON: Press the switch on the tailcap until a “click” is heard.
Switch OFF: Press the switch again until a “click” is heard.
Mode Switching
The Nitecore MT40GT 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 mode contains five selectable
sub-settings.
Turbo Mode
To enter Turbo mode, tighten the head and press the switch. While in this
mode, momentary illumination can be achieved by switching off the flashlight
and then pressing the switch partway down. Momentary illumination can be
used as a flashing signal indicator or applied to various tactical applications.
Note: After 5 minutes’ use of turbo mode, the flashlight will lower its output
automatically to prevent overheating and ensure the battery runtime.
User-Defined Mode
To enter user-defined mode, simply loosen the head. In this mode, pressing the
switch all the way down/partway down repeatedly will cycle through brightness
levels and other functions in the following order: “High-Mid-Low- SOS-Strobe”.
To select and save a desired mode, simply turn off the flashlight when that
mode is being dispalyed.
Tips: Make NITECORE MT40GT your perfect multi-task flashlight.
NITECORE MT40GT flashlights essentially have two modes: Turbo mode
(100% output) and user-defined mode. Turbo mode is accessed by tightening
the flashlight head. User-defined mode is accessed by loosening the head and
rapidly pressing the on/off switch to cycle through modes (strobe, low, medium
and high). A given mode can be saved by simply turning off the light while in
that mode. Real-world examples include: When used around the home, loosen
the head and select low output in custom mode. 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.
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 NITECORE® distributor or send an email to
※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.
Accessories
Clip, tactical ring, lanyard,
quality holster, spare rubber cap,
spare O-ring
TYPE
Nominal voltage
Compatible
Primary Lithium battery
CR123 3V
Y (Recommended)
18650 Rechargeable Li-ion battery
18650 3.7V
Y (Recommended)
Rechargeable Li-ion battery
RCR123 3.7V
Y
Brightness & Runtime
2×18650
4×CR123
TURBO HIGH MID LOW
LUMENS
500
LUMENS
1000
LUMENS
250
LUMENS
90
2
h
15
min
4
h
15
min
9
h
30
min
31
h
1
h
30
min
2
h
45
min
6
h
30
min
18
h
30
min
618m
(Beam Distance)
95400cd
(Peak Beam Intensity)
IPX-8, 2m
(Waterproof AND Submersible)
1.5m
(Impact Resistant)
NOTICE:
Stated data has been
measured according to
the international flashlight
testing standards
ANSI/NEMA FL1 using
two quality NITECORE
18650 (3.7V 3400mAh)
batteries or four Nitecore
CR123 (3V 1700mAh)
batteries under laboratory
conditions. The data may
vary due to individual
usage habits and
environmental conditions.
WARNING
Ensure batteries are inserted
with the positive (+) ends
pointing to the head. The
MT40GT will not operate with
incorrectly inserted batteries.
MT40GT
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
20150831
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