Nitecore NU25 MCT UL 400 Lumen Ultralight USB-C Rechargeable Headlamp Manyèl Enstriksyon

1. Entwodiksyon

This manual provides detailed instructions for the Nitecore NU25 MCT UL 400 Lumen Ultralight USB-C Rechargeable Headlamp. Please read thoroughly before use to ensure proper operation and maintenance.

2. Pake kontni

The Nitecore NU25 MCT UL package includes:

Nitecore NU25 MCT UL Headlamp
USB-C USB-C chaje kab
Elastic Cord Headband (Black)
Difize Bagay Sak
Nitecore Sticker

Figure 1: Nitecore NU25 MCT UL headlamp with included USB-C charging cable and Nitecore sticker.

3. Enstalasyon ak Premye Itilizasyon

3.1. Chaje tèt laamp

The NU25 MCT UL features a built-in rechargeable Lithium Ion battery.

Jwenn pò chaje USB-C a sou bò tèt la.amp.
Open the protective cover of the USB-C port.
Connect the included USB-C charging cable to the headlamp and a power source (e.g., USB adapter, computer USB port).
The power indicator lights will show charging status. A full charge typically takes approximately 1 hour.
Once fully charged, disconnect the cable and securely close the protective cover to maintain water resistance.

Fèmen view of the Nitecore NU25 MCT UL headlamp's USB-C charging port. — Figi 2: Close-up view of the Nitecore NU25 MCT UL headlamp's USB-C charging port.

3.2. Ajiste bann tèt la

Headl laamp comes with an elastic cord headband for comfortable and secure fit.

Mete tèt laamp sou tèt ou.
Adjust the elastic cord using the cord lock mechanism at the back to achieve a snug fit without being too tight.
Headl laamp unit can be tilted up or down to direct the beam as needed.

Figure 3: Nitecore NU25 MCT UL headlamp worn by a person, demonstrating its lightweight design.

Videyo 1: Yon overview of the Nitecore NU25 MCT and NU25 MCT UL headlamps, highlighting features and differences.

4. Operasyon Enstriksyon

The NU25 MCT UL features a dual-button interface for intuitive control.

Figure 4: Close-up of the Nitecore NU25 MCT UL headlamp's dual button interface, showing Power and Mode buttons.

4.1. Power On/Off & Brightness Adjustment (White Light)

Pou limen: Long press the Power button (larger button) for 2 seconds. The headlamp will turn on in the last used white light mode (or low neutral white by default).
Pou ajiste klète: While the white light is on, short press the Power button to cycle through Ultra Low, Low, Mid, and High brightness levels.
Pou fèmen: Long peze bouton pouvwa a pou 2 segonn.

4.2. Chanje Tanperati Koulè

Headl laamp offers multiple color temperatures for the primary white light.

While the white light is on, short press the Mode button (smaller button) to cycle through Warm White (3000K), Neutral White (4500K), and Cool White (6500K).

Figure 5: Illustration showing the three available color temperatures: 3000K Warm Light, 4500K Neutral White Light, and 6500K Cool White Light.

4.3. Mode limyè wouj

The auxiliary red light is useful for preserving night vision and signaling.

To turn on red light: Lè tèt laamp is off, long press the Mode button for 2 seconds. It will turn on in Low Red.
To adjust red light brightness/mode: While the red light is on, short press the Power button to cycle through Low Red, High Red, and Red Flashing.
To turn off red light: Long press the Mode button for 2 seconds.

Figure 6: Image demonstrating the red light mode, ideal for map viewing, stargazing, and not attracting insects.

4.4. Special Modes (SOS, Beacon)

To access special modes: Pandan ke tèt laamp is off, double press the Mode button. It will activate SOS mode.
To cycle through special modes: While in SOS mode, short press the Power button to switch to Beacon mode.
To exit special modes: Long press the Power button or Mode button for 2 seconds.

4.5. Lockout Function

To prevent accidental activation during transport or storage:

Pou fèmen: Lè tèt laamp is off, simultaneously press and hold both the Power and Mode buttons for 2 seconds. The headlamp will flash once to indicate it is locked.
Pou déblotché: Simultaneously press and hold both the Power and Mode buttons for 2 seconds. The headlamp will flash once and turn on in Ultra Low mode.

5. Karakteristik kle

Ultralight Design: Weighing only 1.65 oz (47g) with the elastic cord, designed for maximum comfort during extended use.
Multiple Color Temperatures (MCT): Offers Warm (3000K), Neutral (4500K), and Cool (6500K) white light options to suit various environments and preferences.
Segondè pwodiksyon klète: Up to 400 lumens with a maximum beam distance of 144 yards.
USB-C Rechargeable: Integrated USB-C port for convenient and fast charging.
Konstriksyon dirab: Crafted from robust PC material, rated IP66 for water and dust resistance, and impact-resistant up to 1 meter.
Limyè wouj oksilyè: Preserves night vision and provides signaling capabilities.
Intuitive Dual-Button Interface: Easy operation for power, brightness, and mode selection.
Endikatè pouvwa: Built-in indicator displays battery status.

Figure 7: Image highlighting the ultralight design of the Nitecore NU25 MCT UL headlamp, weighing only 47 grams.

Figure 8: Image illustrating the Nitecore NU25 MCT UL's 400 lumens output and 144-yard beam distance.

6. Espesifikasyon teknik

Mode	Sòti	Runtime	Distans gwo bout bwa	Pik entansite gwo bout bwa
Primary Light (Neutral White / Warm Light / Cool Light)
Segondè	400 Lumen	2h 40min	132m	4381cd
Mid	200 Lumen	5h	94m	2192cd
Ba	60 Lumen	13h	51m	662cd
Ultra ba	6 Lumen	45h	13m	43cd
Oksilyè limyè wouj
Segondè	15 Lumen	10h	--	--
Ba	7 Lumen	26h	--	--
Flache dousman	15 Lumen	--	--	--
Mòd espesyal
SOS	400 Lumen	--	--	--
Beacon	400 Lumen	--	--	--
Rezistans enpak	1m
Rezistans dlo	IP66

Note: Stated data is measured using the built-in 700mAh Li-ion battery (3.85V) in accordance with international flashlight testing standards ANSI/PLATO FL 1-2019 at an ambient temperature of 22°C (72°F) from the NITECORE Lab. The data may vary in real-world use due to different environmental conditions.

This product is equipped with a thermal protection function, which automatically regulates the output of the product according to the working condition to maintain optimal performance.

Technical specifications table for the Nitecore NU25 MCT UL headlamp, detailing output, runtime, and beam distance for various modes. — Figure 9: Technical specifications table for the Nitecore NU25 MCT UL headlamp.

7. Swen ak Antretyen

Netwaye tèt laamp body with a soft, damp twal. Evite materyèl abrazif.
Ensure the USB-C port cover is securely closed when not charging to maintain water resistance.
Recharge the battery regularly, even if not in use, to prolong battery life. Avoid fully depleting the battery for extended periods.
Sere tèt laamp nan yon kote ki fre, sèk lwen limyè solèy la dirèk ak tanperati ekstrèm.

NAN. Depanaj

Headlamp pa limen:
- Check if the battery is charged. Connect to a USB-C power source.
- Ensure the lockout function is not activated (simultaneously press both buttons for 2 seconds to unlock).
Limyè ki soti a fèb oswa li pa konsistan:
- The battery might be low; recharge the headlamp.
- Headl laamp may be in thermal regulation mode if it has been operating at high output for an extended period. Allow it to cool down.
Dlo antre:
- Ensure the USB-C port cover is properly sealed. If water has entered, turn off the device immediately and allow it to dry completely before attempting to use it again. Contact customer support if issues persist.

9. Garanti ak Sipò Kliyan

The Nitecore NU25 MCT UL headlamp comes with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included in your package or visit the official Nitecore websit.

For technical support, service, or inquiries, please contact Nitecore customer service or your local distributor.

Manufacturer: Sysmax Innovation Co.