Nitecore NU40 - 1000 Lumens Lightweight Rechargeable Headlamp Manual

Features

• High performance lightweight USB-C rechargeable headlamp
• Max output of 1,000 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 2,600mAh 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 indicate 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

Specifications

Dimensions:
79.8mm x 46.1mm x 43.9mm (3.14" x 1.81" x 1.73") (Bracket Included)

Weight:
116g (4.09 oz) (Bracket and Headband Included) 94g (3.32 oz) (Bracket Included)

Accessories

USB-C Charging Cable, Headband

Technical Data

Charging Function

Power Button / Mode Button

Power Indication

Sensor Protection Function

Charging Function

The NU40 is equipped with an intelligent charging system. Please charge the headlamp before the 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. 1.5h (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 memorized brightness level, or it will automatically return to the previous memorized brightness level 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 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 be on and go off after 2 seconds.

Note: The battery should be recharged when the output 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 is turned on.

Warnings

1. 
   Possible dangerous radiation! Don't look into the light! May be dangerous for your eyes.
2. Please recharge the product every 3 months when left unused for a prolonged time.
3. When the product is kept in the backpack, please activate the Lockout Mode to prevent accidental activation.
4. 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.
5. 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

1. the product(s) is/are broken down, reconstructed and/or modified by unauthorized parties;
2. 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.

SYSMAX Innovations Co., Ltd.

TEL: +86-20-83862000
FAX: +86-20-83882723
E-mail: info@nitecore.com
Web: www.nitecore.com ^{Made in China}

Address: Unit 6355, 5/F, No. 1021 Gaopu Road, Tianhe District, Guangzhou, 510653, Guangdong, China

Please find us on faceb ok:
NITECORE Flashlight
NU20124022

Videos

Nitecore NU40 1000 lumen USB-C Rechargeable Running Headlamp Review Video

Documents / Resources

References

• http://www.nitecore.com

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Nitecore NU40 - 1000 Lumens Lightweight Rechargeable Headlamp Manual