NITECORE NU50 Superior Performance High Capacity USB C Rechargeable Headlamp User Manual
- June 9, 2024
- Nitecore
Table of Contents
NU50
Manual
QUICK GUIDE
Superior Performance High Capacity
USB-C Rechargeable Headlamp
- 1,400 Lumens Max Output
- White Light + Red Light
- Built-in 4,000mAh 21700 Li-ion Battery
Specifications
Dimensions:
83.4mm x 48.5mm x 43.9mm
(3.28″ x 1.91″ x 1.73″) (Bracket Included)
Weight:
146g (5.15 oz)
(Bracket and Headband Included)
122g (4.30 oz) (Bracket Included)
Accessories
USB-C Charging Cable, Headband
Technical Data
| White Light| Red Light| White Light
---|---|---|---
TURBO| HIGH| MID| LOW| ULTRALOW| CONSTANT-ON| SLOW FLASHING| SOS| BEACON
Brightness| 1,400
Lumens| 600
Lumens| 300
Lumens| 100 Lumens| 8 Lumens| 5 Lumens| 10 Lumens| 1,400
Lumens| 1,400
Lumens
Runtime| —| llh| 16h| 31h| 180h| 100h| 100h| —| —
Beam Distance| 130m| 77m| 53m| 30m| 8m| 5m| —| —| —
Peak Beam Intensity| 3,800cd| 1,500cd| 700cd| 230cd| 17cd| 7cd| —| —|
Impact Resistance| 2m
Water Resistance| IP68, 2m (Waterproof and Submersible)
Note: The stated data is measured by using the built-in Li-ion battery (3.6V 4,000mAh) under laboratory conditions. The data may vary in real world use due to different environmental conditions.
Features
- Superior performance high capacity USB-C rechargeable headlamp
- Max output of 1,400 lumens
- Red light illumination designed for preserving the night vision
- Utilizes a unibody optical lens system with various facets for reflecting a uniform and soft light
- Built-in 4,000mAh Li-ion battery
- Built-in intelligent Li-ion battery charging circuit with a USB-C charging port (5V⎓2A)
- Designed with two buttons different in shape and touch, offering easy onehanded operation
- 5 brightness levels, 2 light sources, and 3 special modes available
- Designed with 4 power indicators to inform the remaining battery power
- Made from durable PC material with an aluminum alloy front housing
- Compact and lightweight
- Impact resistant to 2 meters
- Waterproof and dustproof rating in accordance with IP68
Charging Function
Power Button / Mode Button
Power Indication
| Status of Indicators | Power Level |
|---|---|
| 4 Constant-on | Approx. 100% |
| 3 Constant-on | Approx. 75% |
| 2 Constant-on | Approx. 50% |
| 1 Constant-on | Approx. 25% (Please charge the product as soon as possible) |
Sensor Protection Function
Charging Function
The NU50 is equipped with an intelligent charging system. Please charge the
headlamp before first use.
Power Connection: As illustrated, rotate the USB protection cover
clockwise and use the USB cable to connect an external power supply (e.g. a
USB adapter or other USB charging devices) to the charging port to begin the
charging process. The charging time is approx. 2.5h (charged via the 5V/2A
adapter). When fully charged, the standby time is approx. 12 months.
Charging Indication: During the charging process, 4 power indicators on
the bottom will flash to inform the user. When the battery is fully charged, 4
power indicators will become steadily turned on.
Power Button / MODE Button
- The Power Button is used for turning on / off the light and adjusting brightness levels.
- The MODE Button is designed for switching light sources.
On / Off
- When the light is off, long press the Power Button for 1 second to access LOW.
- When the light is on, long press the Power Button or MODE Button for 1 second to turn it off.
White Light
- When the light is off, long press the Power Button for 1 second to access LOW.
- When the light is off, double press the Power Button to access ULTRALOW.
- When the light is on, short press the Power Button to cycle through the following brightness levels: LOW – MID – HIGH.
- When the light is on, double press the Power Button to access TURBO. Short press the Power Button again to return to the previous status, or it will automatically return to the previous status if there is no operation in 30 seconds.
Red Light
- When the light is off, long press the MODE Button for 1 second to turn on the red light.
- When the red light is on, short press the Power Button to switch between CONSTANT-ON and SLOW FLASHING.
Light Sources Switching
When the light is on, short press the MODE Button to switch between white
light and red light.
Special Modes
(SOS / BEACON)
- When the headlamp is in any status, double press the MODE Button to access SOS.
- When either special mode is on, short press the Power Button to switch between SOS and BEACON. Double press the MODE Button again to return to the previous status.
Lockout / Unlock
- When the headlamp is off, long press both buttons for 2 seconds until the light flashes 3 times to indicate access to the Lockout Mode. In the Lockout Mode, any brightness levels or special modes are unavailable, and the light will flash once to indicate this status when pressing either button.
- When in the Lockout Mode, long press both buttons for 2 seconds again until the ULTRALOW is on to indicate the unlock status.
Note: The headlamp will be automatically unlocked when charging in the Lockout Mode.
Power Indication
When the light is off, short press the MODE Button, the corresponding power
indicators on the bottom will light up in turn and go off after 2 seconds.
Note: The battery should be recharged when the light appears to be dim,
or the headlamp becomes unresponsive due to low power.
Sensor Protection Function
When the built-in optical sensor detects an obstruction ahead, the brightness
will automatically lower to the LOW Level (100 Lumens). The headlamp will
return to its previous brightness level once the obstruction has been removed.
The sensitivity of the sensor may vary due to different colors and materials
of obstructions.
Note: This function is not available when the red light, SOS, or BEACON
is on.
Warnings
- CAUTION! Possible dangerous radiation! Don’t look into the light! May be dangerous for your eyes.
- Please recharge the product every 6 months when left unused for a prolonged time.
- When the product is kept in the backpack, please turn on the Lockout Mode to prevent accidental activation.
- DO NOT disassemble or modify the headlamp as doing so will cause damage to it and render the product warranty invalid. Please refer to the warranty section in the manual for complete warranty information.
- Dispose of the device/batteries in accordance with applicable local laws and regulations.
Warranty Service
All NITECORE® products are warranted for quality. Any DOA / defective product
can be exchanged for a replacement through a local distributor/dealer within
15 days of purchase. After that, all defective / malfunctioning NITECORE®
products can be repaired free of charge within 24 months from the date of
purchase. Beyond 24 months, a limited warranty applies, covering the cost of
labor and maintenance, but not the cost of accessories or replacement parts.
The warranty will be nullified if
- the product(s) is/are broken down, reconstructed and/or modified by unauthorized parties;
- the product(s) is/are damaged due to improper use.
For the latest information on NITECORE® products and services, please contact
a local NITECORE® distributor or send an email to
service@nitecore.com.
※ All images, texts and statements specified herein this user manual are for
reference purposes only. Should any discrepancy occur between this manual and
information specified on www.nitecore.com, Sysmax
Innovations Co., Ltd. reserves the rights to interpret and amend the content
of this document at any time without prior notice.
Worldwide
Warranty Service
Model number
—————————————
Date of purchase
—————————————
Serial number
—————————————
Store Stamp
This is the certificate of authenticity if this item and we confirm that it
has been subjected to the most exacting quality controls by SYSMAX Innovations
Co., Ltd.
NOTE:
Please ensure this warranty card is fully completed by the distributor or
retailer after purchasing the product. Should the product fail to operate
correctly during the warranty
period, it may be returned with the completed warranty card and original sales
receipt to the retailer or local distributor for replacement or repair.
Customer Service Email:
service@nitecore.com
SYSMAX Innovations Co., Ltd.
TEL: +86-20-83862000
FAX: +86-20-83882723
E-mail: info@nitecore.com
Web: www.nitecore.com
Address: Unit 6355, 5/F, No. 1021 Gaopu Road, Tianhe District, Guangzhou,
510653, Guangdong, China
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