Introdución
This manual provides instructions for the DieHard 41-6646 3,400-Lumen Water-Resistant Aluminum COB LED Rechargeable Flashlight with Power Bank. Please read this manual thoroughly before operating the device to ensure proper use and maintenance. Retain this manual for future reference.
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Características clave
- Modos de iluminación: 3,400 lumens (flood + spotlight), 1,500 lumens (flood), 2,000 lumens (spotlight high), and 600 lumens (spotlight low).
- Distancia de feixe: Ranges between 229 feet and 853 feet, depending on the mode.
- Durabilidade: Constructed from heavy-duty, military-grade aluminum.
- Resistencia á auga: IPX4 rated, providing protection against splashing water from any direction.
- Resistencia ao impacto: Drop tested to 3.2 feet.
- Función de banco de enerxía: Integrated power bank for charging external devices.
Compoñentes
Familiarize yourself with the main components of your DieHard flashlight:

Figura 1: global view of the DieHard 41-6646 flashlight, showcasing its black aluminum body and blue accents.
- Flashlight Head: Contains the COB LED for illumination.
- Corpo: Aluminio casing housing the battery and internal electronics.
- Botón de encendido: Located at the tail cap for turning the flashlight on/off and cycling through modes.
- Porto de carga: A USB port located under a protective collar for recharging the flashlight and for power bank functionality.

Figure 2: Close-up of the flashlight head, highlighting the COB LED light source.

Figure 3: The tail cap of the flashlight, featuring the integrated power button.
Configuración
Cargando a lanterna
Before first use, fully charge the flashlight. The device includes a Lithium Ion battery.
- Locate the blue collar on the flashlight body. Twist or slide this collar to reveal the USB charging port.
- Connect the provided USB charging cable to the flashlight's port.
- Conecta o outro extremo do cable USB a unha fonte de alimentación USB compatible (por exemplo, un adaptador de parede, un porto USB do ordenador).
- An indicator light will show charging status. Refer to the product packaging or specific indicator behavior for full charge notification.
- Once fully charged, disconnect the cable and securely close the protective collar over the USB port to maintain water resistance.

Figure 4: The USB charging port revealed by sliding the blue collar.

Figure 5: The USB charging port securely covered by the blue collar.
Instrucións de funcionamento
Powering On/Off and Changing Light Modes
The flashlight features multiple light modes. Press the tail cap power button to cycle through them:
- Primeira prensa: Activates Flood + Spotlight mode (3,400 lumens).
- Segunda prensa: Switches to Flood mode (1,500 lumens).
- Terceira prensa: Switches to Spotlight High mode (2,000 lumens).
- Cuarta prensa: Switches to Spotlight Low mode (600 lumens).
- Quinta prensa: Turns the flashlight off.
To turn off the flashlight from any mode without cycling through all modes, press and hold the power button for approximately 2 seconds.
Usando como banco de enerxía
The DieHard 41-6646 can be used to charge other USB-powered devices.
- Expose the USB charging port by twisting or sliding the blue collar.
- Connect your device's charging cable to the flashlight's USB port.
- The flashlight will begin charging your device. Monitor your device's charging indicator.
- Disconnect your device once charging is complete and securely close the protective collar.
Mantemento
Limpeza
- Limpe o corpo da lanterna cun pano suave eamp pano.
- Non empregue produtos de limpeza abrasivos nin solventes, xa que poden danar o acabado ou os compoñentes internos.
- Ensure the charging port is free of dust and debris. Use a dry, soft brush if necessary.
Almacenamento
- Garda a lanterna nun lugar fresco e seco lonxe da luz solar directa e de temperaturas extremas.
- For long-term storage, charge the battery to approximately 50% every 3-6 months to prolong battery life.
Resolución de problemas
If you encounter issues with your DieHard flashlight, refer to the following common problems and solutions:
- Flashlight Not Turning On or Low Brightness:
- Ensure the battery is fully charged. Connect to a power source and allow sufficient charging time.
- Prema firmemente o botón de acendido.
- Charging Issues (Flashlight not charging or cable not staying in port):
- Verify the USB charging cable is fully inserted into the flashlight's port. The protective collar must be completely open to allow proper connection.
- Ensure the charging cable and the USB power adapter are functional. Try a different cable or adapter if available.
- Check the charging port for any obstructions or damage.
- Duración da batería curta:
- High lumen modes consume battery power more rapidly. Consider using lower lumen modes for extended runtimes.
- Ensure the flashlight is fully charged before each use.
- Overheating or Unusual Odor During Charging or Operation:
- Immediately disconnect the flashlight from any power source and discontinue use.
- Contact customer support for assistance. Do not attempt to disassemble or repair the device.
Especificacións
| Característica | Detalle |
|---|---|
| Número de modelo | 41-6646 |
| Tipo de fonte de luz | LED COB |
| Brillo (máx.) | 3,400 Lumens (Flood + Spotlight) |
| Other Brightness Modes | 1,500 Lumens (Flood), 2,000 Lumens (Spotlight High), 600 Lumens (Spotlight Low) |
| Distancia do feixe | 229 ft. - 853 ft. |
| Material | Aluminio |
| Resistencia á auga | IPX4 (resistente á auga) |
| Clasificación da proba de caída | 3.2 pés. |
| Fonte de enerxía | Alimentado por batería |
| Tipo de batería | 1 ión de litio (incluído) |
| Voltage | 3.7 voltios (DC) |
| Dimensións do produto | 1.93" D x 9.3" W x 1.4" H |
| Peso do elemento | 4.2 onzas |
| Características especiais | Portable, Power Bank Function |
| UPC | 035355466461 |
Garantía e Soporte
Información da garantía
The DieHard 41-6646 flashlight comes with a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, abuse, neglect, accident, unauthorized repair, or modification.
Conserve o comprobante de compra para reclamacións de garantía.
Atención ao cliente
For technical assistance, warranty claims, or questions regarding your DieHard flashlight, please refer to the contact information provided with your product packaging or visit the official DieHard websitio para recursos de apoio.





