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Direct access to ultra-low/turbo

 

When the light is off, press and hold the on/off switch     for more than 
one second to enter ultra-low output of 5 lumens;
When the light is off, press and hold the mode switch     for more than 
one sencond to enter turbo output of 4000 lumens.

Special modes (Strobe/Location Beacon/SOS)

When the light is on, press and hold the mode switch     for more than 
one second to enter strobe mode. To cycle through all three modes of 
Location Beacon / SOS / Strobe, press and hold the mode switch     for 
more than one second again. To exit special modes, simply press the 
on/off switch     .

Direct access to strobe: 

When the light is off, press the mode switch     twice in quick succession 
to enter strobe mode instantly. To exit, simply press any switch and the 
light will turn off.

Lockout/Unlock

When the light is on, press and hold both switches simultaneously for 
more than one second until the flashlight is switched off and enters into 
lockout mode. In this mode, neither of the switches will be functional. 
TM16 will keep operating for over 1 year in this mode.
Lockout mode prevents accidental activation of the flashlight. To exit 
lockout mode, simply press and hold both switches simultaneously for 
more than one second again.

Power Tips

1. When the light is off, press the mode switch     to activate the blue 
power indicator. The power indicator light will blink 3 times when power 
level is  above 50%; twice when power level is below 50% or once  when 
batteries are close to depletion.
2. Upon 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:

Features

· 

Utilizes 4 CREE XM-L2 U2 LEDs

· 

Maximum output up to 4000 lumens

· 

Features advanced temperature regulation (ATR) technology

· 

Boasts a peak beam intensity of 122,500cd and a throw distance up to 

700 meters

· 

Dual-switch user interface ensures one-handed easy operation

· 

Features 5 brightness levels and 3 special modes

· 

High efficiency circuit board provides max runtime up to 520 hours

· 

Integrated power indicator light displays remaining battery power 

(Chinese Patent: ZL201220057767.4)

· 

Power indicator’s secondary function displays battery voltage (accurate 

to 0.1V)

· 

Direct access to ultra-low or turbo ensures flexibility and convenience

· 

Reverse polarity protection prevents damage from incorrectly inserted 

batteries

· 

Stainless steel retaining ring protects the core components from 

damage

· 

Rear tripod connector brings extra funtionality

· 

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: 182mm (7.17”)

Head diameter: 89mm (3.5”)

Tube diameter: 53mm (2.09”)

Weight

506g (17.85oz)(without battery)

 

Battery Options

 

*Warning:

 Do not use the TM16 with RCR123 or CR123 batteries for it 

may damage the flashlight.

Output & Runtime

NOTICE:

The above data has been measured in accordance with the international 
flashlight testing standards ANSI/NEMA FL1 using 4 x 18650 (3.7V 
2600mAh) batteries under laboratory conditions. The data may vary 
slightly during real-world use due to battery type, individual usage habits 
and environmental factors.

Operating 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.

User  Manual

Thanks for purchasing NITECORE!

®

The All-Round Flashlight Expert

TURBO

HIGH

MID

LOW

LUMENS

1780

LUMENS

4000

LUMENS

680

LUMENS

280

45

min

2

h

30

min

LOWER

LUMENS

5

520

h

16h

30min

6

h

700m 

(Beam Distance)

122500cd 

(Peak Beam Intensity)

 IPX-8, 2m 

(Waterproof AND Submersible)

1.5m 

(Impact Resistant)

TM16

Accessories

 

Lanyard, spare O-ring

Type

Nominal voltage

Compatible

Primary Lithium battery 

CR123

3V

NO

18650 Rechargeable Li-ion battery

18650

3.7V

Yes (Recommended)

Rechargeable Li-ion battery

RCR123

3.7V

NO

NOTE: 

Upon battery installation, the power indicator light will blink to 

indicate the battery voltage. Please refer to the “Power Tips” section of 

this manual for details.

WARNING:

1. Insert batteries as labeled on the inside of the battery compartment.

2. Do not mix batteries of different types/brands.

3. When the TM16 is stored in a backpack or left unused for extended 

periods, Nitecore recommends batteries are removed to cut off the 

power entirely, thus preventing battery drain or accidental activation of 

the flashlight.

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

When the light is 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 blink once every three seconds to indicate the 
location of the TM16. In this mode, the TM16 will operate for over 6 
months.

Brightness Levels 

When the light is on, press the mode switch     to cycle through brightness 
levels of ultra-low, low, medium, high and turbo. This mode provides an 
intelligent memory function that ensures direct access to the setting last 
used.

ATR Technology

Advanced temperature regulation (ATR) technology allows the TM16 to 
dynamically adjust output performance according to its body temperature. 
This prevents damage from overheating and prolongs its working life.

Changing 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 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, 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.

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