Manual Nitecore MH20GT Flashlight

Manual

®

The All-Round Flashlight Expert

User Manual

MH20GT

Features

· A lightweight, portable 1x18650 USB rechargeable flashlight

· Utilizes a CREE XP-L HI V3 LED

· High efficiency constant current circuit enables maximum output up to 1000 lumens

· Driven by one 18650 battery for maximum runtime up to 680 hours

· Integrated “Precision Digital Optics Technology” provides extreme reflector performance

· Boasts a peak beam intensity of 33,000 cd and a throw distance of up to 362 meters

· Features advanced temperature regulation (ATR) technology

· Innovative single button 2-stage switch accesses multiple functions and modes

· Integrated power indicator notifies battery voltage (accurate to 0.1V)

· Intelligent charging module with a micro USB port charges Li-ion battery rapidly

· Direct access to ultra-low and turbo output

· Detachable two-way anti-rolling clip

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

· Constructed from aerospace 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: 4.37” (111mm)

Head diameter: 1.25” (31.8mm)

Tail diameter: 1” (25.4mm)

Weight: 3.13oz (88.8gram) (without battery)

Brightness Levels

With the MH20GT switched on, press the switch halfway repeatedly to cycle through the following

brightness levels: ultra-low, low, medium, high and turbo.

NOTE: The MH20GT has a memory feature. Upon turning-on, it will resume the brightness level

last used.

Direct Access to Ultra-low/Turbo

With the light switched off, press and hold the switch halfway for over one second to access

ultra-low output (1 lumen).

With the light switched off, press and hold the switch all the way down for over one second to

access turbo output (1000 lumens).

Special Modes (Strobe/Location Beacon/SOS)

With the light switched on, press and hold the switch all the way down for more than one second to

enter strobe mode. When in strobe mode, press the switch halfway repeatedly to cycle through

SOS, Location Beacon and Strobe modes. To exit, simply press the switch all the way down to turn

the light off. The MH20GT does not have memory effect for any of these special modes.

NOTE: When in location beacon or SOS modes, press and hold the switch halfway for over one

second will access strobe mode directly.

Charging Function

The MH20GT is capable of charging a 18650 Li-ion battery with the included USB charging cable.

Connect USB cable to the MH20GT's charging port and a power source (USB chargers, PC or

other power terminals) as shown in the adjacent image. Fully charging one depleted 18650 battery

takes approximately 6 hours.

Output & Runtime

NOTICE:

The stated data has been

measured in accordance

with the international

flashlight testing standards

ANSI/NEMA FL1, using 1

x Nitecore 18650 battery

(3.7V, 3400mAh) or 2 x

Nitecore CR123 batteries

(3V, 1700mAh) under

laboratory conditions. The

data may vary in

real-world use due to

different battery use or

environmental conditions.

Operating Instructions

Battery installation

Insert 1x18650 battery or 2xCR123 batteries as

illustrated.

NOTE: After loading batteries, the blue power

indicator will blink to indicate battery voltage.

Please refer to the “Power Tips” section of this

manual for details.

WARNING:

Ensure batteries are inserted with the positive (+)

ends pointing towards the head. The MH20GT will

not be operational with incorrectly inserted

batteries.

Accessories

USB cable, quality holster, clip, lanyard,

spare USB port cover, spare O-ring

Battery Options

4.2V3.5V 3.7V 3.9V

Low Power Full Power

6.4V4.8V 5.6V 6.0V

Low Power Full Power

18650×1:

CR123×2:

TURBO HIGH MID LOW

LUMENS

410

LUMENS

1000

LUMENS

230

LUMENS

50

3

h

1

h

22

h

6

h45min

2

h30min

4

5min

14

h15min

4

h30min

LOWER

LUMEN

1

680

h

340

h

362m

(Beam Distance)

33,000cd

(Peak Beam Intensity)

IPX-8, 2m

(Waterproof AND Submersible)

1.5m

(Impact Resistant)

2×CR123

18650

Thanks for purchasing NITECORE!

Power Tips

After battery installation, the blue power indicator will blink to indicate battery voltage (accurate to

0.1V). For example, when battery voltage is at 4.2V, the blue power indicator will blink 4 times,

followed by a one second pause and another 2 blinks. Different voltages represent the

corresponding remaining battery power levels:

SYSMAX Industry Co., Ltd.

TEL: +86-20-83862000

FAX: +86-20-83882723

E-mail: [email protected]

Web: www.nitecore.com

Address： Rm1401-03, Glorious Tower, 850 East Dongfeng Road,

Guangzhou, China 510600

20160316

*Warning: Charge 18650 rechargeable Li-ion batteries only. Do not charge

CR123 or RCR123 batteries.

TYPE

Nominal voltage

Compatible

Primary Lithium battery *

CR123 3V

Yes (Compatible but can

NOT be recharged)

Yes (Compatible but can

NOT be recharged)

18650 Rechargeable Li-ion battery

18650 3.7V

Yes (Recommended and

can be recharged)

Rechargeable Li-ion battery *

RCR123

3.7V

On / Off Operation

NOTE: The MH20GT utilizes a 2-stage switch. The light’s numerous functions are selected according to

the depth the switch is pressed.

To switch ON: Press the switch all the way down until a click is heard.

To switch OFF: Press the switch all the way down once again to switch the light off and enter standby

mode.

Standby Mode

When in standby mode, press the switch halfway to activate the blue power indicator to flash once every

three seconds, thus helping users locate the MH20GT in dark conditions. Press the switch halfway again

to turn the power indicator off. When using 1x18650 battery, the MH20GT will operate over 12 months

with the power indicator on, or remain standby for over 24 months with the power indicator off.

NOTE: When the MH20GT is left unused for extended periods, Nitecore recommends loosening the

head to lock out and cut off power, thus saving battery power and preventing accidental activation.

1. Under normal charging conditions, the blue power indicator

light will blink twice every three seconds to notify users. When

charging is complete, the blue power indicator will illuminate

steadily.

2. If a problem is detected during the charging process, the

MH20GT will stop charging and the blue power indicator will

blink rapidly. This is usually caused by faulty or incorrectly

inserted batteries.

ATR Technology

Advanced temperature regulation (ATR) technology allows the MH20GT to dynamically adjust

output performance according to its body temperature. This prevents damage from overheating and

prolongs its working life.

Changing / Charging Battery

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 Details

Our authorized dealers and distributors are responsible for warranty service. Should any problem

covered under warranty occurs, customers can contact their dealers or distributors in regards to

their warranty claims, as long as the product was purchased from an authorized dealer or

distributor. NITECORE’s Warranty is provided only for products purchased from an authorized

source. This applies to all NITECORE products.

Any DOA / defective product can be exchanged for a replacement through a local distributor/dealer

within the 15 days of purchase. After 15 days, all defective / malfunctioning NITECORE® products

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 if the product(s) is/are broken down, reconstructed and/or modified by

unauthorized parties, or damaged by batteries leakage.

For the latest information on NITECORE® products and services, please contact a local

NITECORE® distributor or send an email to [email protected].

※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. Sysmax Industry Co., Ltd. reserves the rights to interpret and amend the

content of this document at any time without prior notice.

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