Introduction
Thank you for choosing the VASTFIRE W608 Bicycle Headlight. This high-performance headlight is designed to provide superior illumination for mountain biking, road cycling, and other outdoor activities. Featuring a powerful 10000mAh battery, 10000 Lumen output, multiple lighting modes, and a durable aluminum alloy construction, it ensures safety and visibility in various conditions. This manual provides detailed instructions for proper setup, operation, and maintenance to ensure optimal performance and longevity of your device.
Package Contents
- 1 x VASTFIRE W608 Bicycle Headlight
- 1 x Type-C Charging Cable
- 2 x Mounting Brackets
- 1 x USB Conversion Head
- Spacers (as needed for mounting)
- Aluminum alloy screws
Setup Instructions
Follow these steps to securely mount your VASTFIRE W608 Bicycle Headlight to your handlebar:
- Step 1: Position the Base
Place the base of the mounting bracket over your bicycle handlebar. Use appropriate spacers if necessary to ensure a snug fit. - Step 2: Adjust and Tighten Base Screws
Adjust the position of the base to your desired angle and tighten the base screws firmly to secure it to the handlebar. - Step 3: Install Additional Brackets
Install any additional brackets (if provided or required for your setup) in the same manner as the first. - Step 4: Attach the Headlight
Carefully push the VASTFIRE W608 headlight into place on the mounted base. Ensure it clicks or slides securely into position. Tighten any remaining screws to fixate the lamp.

Operating Instructions
The VASTFIRE W608 features a digital display and multiple lighting modes for various riding conditions.
Power On/Off
- To turn on the headlight, press and hold the power button located on the top of the unit.
- To turn off the headlight, press and hold the power button again.
Lighting Modes
The headlight offers 4 distinct lighting modes. Press the power button briefly to cycle through the modes:
- Floodlight: Provides a wide beam for general illumination. (Approx. 7 hours endurance)
- Spotlight: Focuses the beam for longer distance visibility. (Approx. 7 hours endurance)
- High Light: Combines floodlight and spotlight for maximum brightness. (Approx. 4.5-5 hours endurance)
- Flash: A flashing mode for increased visibility to others. (Approx. 9 hours endurance)

Digital Display
The integrated digital display provides real-time information:
- Display 1 (Use Time): Shows the remaining estimated operating time in the current mode (e.g., 08:30).
- Display 2 (Power%): Indicates the current battery charge level as a percentage (0-100).

Power Bank Function (Reverse Charging)
The VASTFIRE W608 can also function as a power bank to charge other USB-C compatible devices. Connect your device to the headlight's Type-C port using the provided cable and USB conversion head.

Maintenance
Charging
- Charge the headlight using the provided Type-C charging cable.
- A full charge takes approximately 8 hours.
- The digital display will show the charging progress (0-100%).
- Ensure the rubber cover for the USB port is securely closed after charging to maintain waterproof integrity.
Cleaning and Storage
- Wipe the headlight with a soft, damp cloth to remove dirt and debris. Avoid abrasive cleaners.
- The headlight is IP65 waterproof and dustproof, meaning it is protected against low-pressure water jets from any direction and total dust ingress. However, avoid submerging it in water.
- Store the headlight in a cool, dry place when not in use.
- For long-term storage, charge the battery to about 50-70% every few months to preserve battery health.

Troubleshooting
- Light not turning on: Ensure the battery is charged. Press and hold the power button for a few seconds to activate.
- Light not charging: Check the Type-C cable and USB power source. Ensure the cable is securely connected to both the headlight and the power adapter.
- Short battery life: Ensure the battery is fully charged before use. Operating in High Light mode will consume battery faster than other modes. Battery performance may decrease over time with extensive use.
- Digital display not working: If the display is unresponsive, try fully charging the device. If the issue persists, contact customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | W608 |
| Body Material | Aluminum Alloy |
| Light Color | White |
| Product Color | Black |
| Light Beads | 8 Pcs LED |
| Lumen Output | 10000 Lumen (approx.) |
| Lighting Modes | 4 Modes (Floodlight, Spotlight, High Light, Flash) |
| Battery Capacity | 10000 mAh |
| Voltage | 3.7V |
| Charging Mode | Type-C Charging |
| Charging Time | Approx. 8 hours |
| Use Time | 5-10.5 hours (depending on mode) |
| Waterproof Level | IP65 |
| Net Weight | 330g |
| Dimensions (L x W x H) | 17cm x 4.7cm x 3.2cm (6.6in x 1.8in x 1.2in) |
| Mounting Placement | Handlebar |
| Certification | CE |

User Tips
- First Use: Fully charge the headlight before its first use to ensure optimal battery calibration and performance.
- Beam Adjustment: Experiment with the mounting angle to find the best beam coverage for your riding style and environment. The 180° wide illumination is designed to prevent dazzling oncoming traffic while providing ample light.
- Power Bank Use: When using the headlight as a power bank, be mindful of the remaining battery percentage to ensure you still have enough light for your ride.
- Visibility: Even with a powerful front light, consider using a tail light for enhanced rear visibility, especially during night rides.

Warranty and Support
For warranty information, technical support, or any questions regarding your VASTFIRE W608 Bicycle Headlight, please refer to the seller or manufacturer's official support channels. Keep your proof of purchase for any warranty claims.




