Introduction
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.
Product Overview
Key Features
- Illumination Modes: 3,400 lumens (flood + spotlight), 1,500 lumens (flood), 2,000 lumens (spotlight high), and 600 lumens (spotlight low).
- Beam Distance: Ranges between 229 feet and 853 feet, depending on the mode.
- Durability: Constructed from heavy-duty, military-grade aluminum.
- Water Resistance: IPX4 rated, providing protection against splashing water from any direction.
- Impact Resistance: Drop tested to 3.2 feet.
- Power Bank Function: Integrated power bank for charging external devices.
Components
Familiarize yourself with the main components of your DieHard flashlight:
Figure 1: Overall view of the DieHard 41-6646 flashlight, showcasing its black aluminum body and blue accents.
- Flashlight Head: Contains the COB LED for illumination.
- Body: Aluminum casing housing the battery and internal electronics.
- Power Button: Located at the tail cap for turning the flashlight on/off and cycling through modes.
- Charging Port: 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.
Setup
Charging the Flashlight
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.
- Connect the other end of the USB cable to a compatible USB power source (e.g., wall adapter, computer USB port).
- 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.
Operating Instructions
Powering On/Off and Changing Light Modes
The flashlight features multiple light modes. Press the tail cap power button to cycle through them:
- First Press: Activates Flood + Spotlight mode (3,400 lumens).
- Second Press: Switches to Flood mode (1,500 lumens).
- Third Press: Switches to Spotlight High mode (2,000 lumens).
- Fourth Press: Switches to Spotlight Low mode (600 lumens).
- Fifth Press: 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.
Using as a Power Bank
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.
Maintenance
Cleaning
- Wipe the flashlight body with a soft, damp cloth.
- Do not use abrasive cleaners or solvents, as these may damage the finish or internal components.
- Ensure the charging port is free of dust and debris. Use a dry, soft brush if necessary.
Storage
- Store the flashlight in a cool, dry place away from direct sunlight and extreme temperatures.
- For long-term storage, charge the battery to approximately 50% every 3-6 months to prolong battery life.
Troubleshooting
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.
- Press the power button firmly.
- 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.
- Short Battery Life:
- 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.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 41-6646 |
| Light Source Type | COB LED |
| Brightness (Max) | 3,400 Lumens (Flood + Spotlight) |
| Other Brightness Modes | 1,500 Lumens (Flood), 2,000 Lumens (Spotlight High), 600 Lumens (Spotlight Low) |
| Beam Distance | 229 ft. - 853 ft. |
| Material | Aluminum |
| Water Resistance | IPX4 (Water Resistant) |
| Drop Test Rating | 3.2 ft. |
| Power Source | Battery Powered |
| Battery Type | 1 Lithium Ion (included) |
| Voltage | 3.7 Volts (DC) |
| Product Dimensions | 1.93"D x 9.3"W x 1.4"H |
| Item Weight | 4.2 ounces |
| Special Features | Portable, Power Bank Function |
| UPC | 035355466461 |
Warranty and Support
Warranty Information
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.
Please retain your proof of purchase for warranty claims.
Customer Support
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 website for support resources.
