®
The All-Round Flashlight Expert
User Manual
MH27U
Features
• Quadruple source flashlight optimized for tactical applications, with ultraviolet LED for
authentification (such as money, ID card, verification mark) and florescence activation
• Utilizes a CREE XP-L HI V3 LED
• Versatile 500mW ultraviolet light at 365nm wavelength
• Integrated “Precision Digital Optics Technology” provides extreme reflector performance
• Maximum beam intensity up to 53,500cd
• Maximum beam distance up to 462 meters
• Uses one 18650 Li-ion battery for maximum runtime up to 708 hours
• High efficiency constant current circuit enables maximum output up to 1,000 lumens
• Equipped with unique bicolored (red and blue) tactical /signaling lights
• 4 brightness levels and 6 special modes are easily accessible via dual side switches
• Direct access to turbo and UV modes
• Features advanced temperature regulation (ATR) technology
• Spring-loaded impact absorption mechanism with reverse polarity protection
• Intelligent Li-ion battery charging circuit (via Micro-USB charging port)
• A power indicator built into the side switch indicates remaining battery power (accurate to 0.1V)
• Intelligent memory function for brightness levels and special modes
(except SOS and location beacon)
• Tactical lanyard enclosed
• Stainless steel retaining 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
• Waterproof in accordance with IPX8 (submersible to two meters)
• Impact resistant to 1 meter
• Tail stand capability
Dimensions
Length: 6.06” (154mm)
Head diameter: 1.57” (40mm)
Tail diameter: 1” (25.4mm)
Weight: 6.0oz (170g) (without battery)
Direct Access to Turbo
With the MH27UV turned on, press and hold the Step-up switch for one second to enter turbo
mode (1,000 lumens) directly;
With the MH27UV turned off, press and hold the Step-up switch , and press the tailcap switch
all the way down to enter turbo mode (1,000 lumens) directly.
Direct Access to UV
With the MH27UV turned on, press and hold the Step-down switch for one second to enter UV
illumination directly;
With the MH27UV turned off, press and hold the Step-down switch , and press the tailcap
switch all the way down to enter UV illumination directly;
Note:
1. DO NOT direct the UV beam towards skin. Long time UV exposure can do harm to the skin.
2. DO NOT look directly into an emitting UV LED. Long time UV exposure can do hard to the eyes.
Special Modes (Strobe/Location Beacon/SOS/Police
Warning Signals)
With the MH27UV turned on, press the Step-up and Step-down switches simultaneously to
enter strobe mode.
Once in Strobe, press the Step-up switch once to enter Location Beacon, and once again to
enter SOS (no cycling back). Press the Step-down switch to enter modes in reverse order.
When in Strobe, press the Step-down switch to switch from strobe, blue and red police warning
signal, red police warning signal, to blue police warning signal (no cycling back). Press the Step-up
switch to enter modes in reverse order.
To exit special modes, press the Step-up and Step-down switches simultaneously again. The
MH27UV will resume the brightness level last used.
Note:
The MH27UV has a memory feature. Upon turning-on, it will resume the brightness level or
special mode last used (with the exception of SOS and location beacon).
Charging
The MH27UV features an intelligent charging function. Turn the MH27UV on, connect the flashlight
charging port to a USB power source (USB adaptor, computer, etc) via a USB cord. The normal
charging time for an 18650 battery is 6 hours.
Output & Runtime
NOTICE:
The above data has been measured in accordance with the international flashlight testing standards
ANSI/NEMA FL1 using 1 x 3.7V 3400mAh 18650 battery 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 / Removal
As illustrated, after unscrewing the battery cap, insert /
remove the battery(s) and screw to tighten the battery
cap.
Warning:
DO NOT direct beam towards human or
animal eyes.
Momentary Illumination
Press the tailcap switch partway down and hold to
momentarily turn the light on. Release the tailcap switch to
turn the light off.
Accessories
Quality USB charger, holster, clip, tactical
ring, lanyard, spare charging port cover,
spare O
-
ring, spare tailcap cover
Battery Options
4.2V
3.5V
3.7V
3.9V
Low Power
Full Power
6.4V
4.8V
5.6V
6.0V
Low Power
Full Power
18650×1:
CR123×2:
Thanks for purchasing NITECORE!
Power Tips
With the flashlight turned off, press all three switches simultaneously to activate battery voltage
indication. 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
1.5 second pause and another 2 blinks. Different voltages represent the corresponding remaining
battery power levels.
SYSMAX Innovations Co., Ltd.
TEL: +86-20-83862000
FAX:
+86-20-83882723
E-mail:
Web: www.nitecore.com
Address
：
Unit 6355, 5/F, No. 1021 Gaopu Road, Tianhe District,
Guangzhou, 510653, Guangdong, China
*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
To turn the MH27UV on, press the tailcap switch all the way down until a “click” is heard;
To turn the MH27 UV off, press the tailcap switch all the way down again until a “click” is heard;
Brightness Levels
With the MH27UV turned on, press the Step-up switch repeatedly to switch from Ultraviolet,
Red, Blue, Ultralow, Medium, High, and ends at Turbo.
With the MH27UV turned on, press the Step-down switch repeatedly to switch between the
above mentioned levels and modes in reverse order until UV.
1. Under normal charging conditions, the blue indicator in the side
switches will blink once every 1.5 seconds. When charging is
complete, the blue indicator will illuminate steadily.
2. If a problem is detected during the charging process, the
MH27UV will stop charging and the blue indicator will blink
rapidly. This is usually caused by damaged or incorrectly
inserted batteries.
Note:
After voltage reporting, the power indicator will blink once every 3 seconds to unveil the
location of the MH27 UV. A full 18650 will keep the torch in this status operational for 1 year.
ATR Technology
Advanced temperature regulation (ATR) technology allows MH27UV to dynamically adjust output
performance based on its internal temperature. This prevents damage from overheating and
prolongs its working life.
Changing / Charging Battery
When batteries are close to depletion, the brightness level will be locked at ultralow to protect
batteries. Please change batteries at this time.
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 Innovations Co., Ltd.
reserves the rights to interpret and amend the content of this document at any time without prior
notice.
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NITECORE Flashlight
V
LUMENS
1000
LUMENS
13
LUMENS
3
53500cd
462m
IPX8, 2m
(Waterproof AND Submersible)
1
m
(Impact Resistant)
TURBO
HIGH
MID
ULTRALOW
RED
BLUE
UV
6
h
15
min
28
h
28
h
28
h
40
h
40
h
40
h
1
h
28
h
708
h
LUMENS
250
LUMENS
55
LUMEN
1
LUMENS
13
LUMENS
3
STROBE
SOS
LOCATION
BEACON
BLUE AND RED
WARNING SIGNAL
RED WARNING
SIGNAL
BLUE WARNING
SIGNAL
LUMENS
1000
LUMENS
1000
LUMENS
1000
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200m
98m
12.6m
9m
1.8m
10000cd 2400cd
40cd
20cd
0.8cd
Made in China
MH270627UV22
