1. Introduction
Thank you for choosing the OFFBONDAGE B12/B13 Series Bicycle Headlight. This high-brightness, non-glare headlight is designed to enhance your night riding experience with its 200-meter long-range illumination, durable aluminum alloy construction, and convenient Type-C charging. This manual provides essential information for the safe and effective use of your new bicycle headlight.

2. Safety Information
Please read and understand all safety instructions before using the product. Failure to follow these instructions may result in injury or damage to the product.
- Do Not Stare Directly: The headlight emits a powerful beam. Avoid looking directly into the light or shining it directly into the eyes of pedestrians or drivers, as this may cause temporary blindness or discomfort.
- Secure Mounting: Always ensure the headlight is securely mounted to your bicycle's handlebar to prevent it from falling off during rides.
- Charging Cable: Use only the charging cable provided with this product. Using incompatible charging cables may damage the device or pose a safety risk.
- Water Resistance: The headlight has an IPX5 waterproof rating, meaning it is protected against water jets from any direction. It is not designed for submersion.
- Children: Keep the device out of reach of children.
3. Package Contents
Verify that all items are present in your package:
- OFFBONDAGE Bicycle Headlight (Main Light)
- Rubber Strap Mount
- Handlebar Mount
- USB Type-C Charging Cable

4. Product Overview and Features
The OFFBONDAGE B12/B13 Series Bicycle Headlight is engineered for performance and convenience:
- High Brightness & Non-Glare Design: Features an optical design that illuminates the path ahead without dazzling oncoming pedestrians or vehicles.
- Long Throw: Provides a powerful beam with a range of up to 200 meters.
- Durable Construction: Made from CNC aluminum alloy for wear-resistance, drop-proof durability, and efficient heat dissipation.
- Portable: Compact and lightweight, with the main light weighing approximately 235g, making it easy to carry.
- Type-C Charging: Equipped with a single-port USB Type-C interface for fast and convenient charging from various sources (power bank, charging head, car charger, computer).
- Dual Switch Control: Independent switches for controlling high and low beams, allowing for versatile lighting modes (5-8 files/modes).
- Waterproof: IPX5 rated for daily waterproofing, protecting against splashes and light rain.


5. Setup and Installation
The headlight offers quick disassembly and two primary installation methods to suit your preference:
- Handlebar Mount (Formal Attire Effect):
Attach the handlebar mount to your bicycle's handlebar using the provided rubber strap or screws. Ensure it is tightened securely. Slide the headlight onto the mount until it clicks into place. This positions the light above the handlebar. - Under-Bar Mount (Hoisting Effect):
For a cleaner look or specific bike setups, the light can be mounted underneath the handlebar. Attach the mount to the underside of your handlebar or a compatible out-front mount. Secure the headlight to this mount.
Always ensure the light is firmly attached before riding. Adjust the angle of the headlight to illuminate the road ahead without pointing too high into oncoming traffic.

6. Operating Instructions
The OFFBONDAGE headlight features a double switch system for independent control of high and low beams, offering multiple lighting modes (5-8 files).
- Power On/Off: Press and hold one of the switches for approximately 2 seconds to turn the light on or off.
- Switching Modes: Short press a switch to cycle through the available lighting modes (e.g., high beam, low beam, flashing, etc.).
- Independent Control: Use the two distinct switches to control different light functions or brightness levels as per the specific model (B12 or B13). Refer to the markings on your device for exact functionality.

7. Charging
Your OFFBONDAGE headlight is equipped with a convenient Type-C USB charging port.
- Connect: Insert the provided USB Type-C charging cable into the headlight's charging port.
- Power Source: Connect the other end of the USB cable to a compatible USB power source such as a power bank, charging head, car charger, or computer USB port.
- Charging Indicator: The light will typically have an indicator (e.g., LED) that changes color or flashes to show charging status (e.g., red for charging, green for fully charged).
- Important Note: Always use the original charging cable supplied with the product to ensure proper charging and prevent potential damage.

8. Maintenance
To ensure the longevity and optimal performance of your headlight:
- Cleaning: Wipe the light body and lens with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish or optics.
- Storage: Store the headlight in a cool, dry place when not in use.
- Battery Care: For models with built-in rechargeable batteries, avoid completely draining the battery frequently. Charge it regularly, even if not used for extended periods, to maintain battery health.
- Water Exposure: While IPX5 rated, avoid prolonged exposure to heavy rain or direct water jets. If it gets wet, dry it thoroughly before charging or storing.
9. Troubleshooting
If you encounter issues with your headlight, try the following:
- Light Not Turning On: Ensure the battery is charged. Connect it to a power source using the provided Type-C cable.
- Light Flickering/Dim: This usually indicates a low battery. Recharge the device.
- Mounting Issues: Double-check that the mount is correctly installed and tightened. Ensure the headlight is fully engaged with the mount.
- Charging Problems: Verify that the charging cable is securely connected to both the light and the power source. Try a different USB port or power adapter. Remember to use the original cable.
10. Specifications
| Feature | Specification |
|---|---|
| Brand Name | OFFBONDAGE |
| Model | B12 / B13 Series |
| Body Material | Aluminum alloy |
| Waterproof Level | IPX5 |
| Mounting Placement | Handlebar |
| Support Dimmer | 5 - 8 Files (lighting modes) |
| Long Throw Distance | 200 meters |
| Charging Interface | Type-C USB |
| Weight (Main Light) | Approx. 235g |
| Battery Capacity (B12) | 2000mAh |
| Battery Capacity (B13) | 4000mAh |
| Dimensions (B12) | Approx. 6.5cm x 4.5cm x 3.5cm |
| Dimensions (B13) | Approx. 7.5cm x 4.5cm x 3.5cm |

11. User Tips
No specific user tips from reviews or Q&A were provided for this product. However, general tips for bicycle headlights include:
- Angle Adjustment: Always adjust your headlight's angle to illuminate the road effectively without blinding oncoming traffic or pedestrians. A good rule of thumb is to have the beam hit the ground about 10-20 feet in front of your bike.
- Battery Life: For longer rides, consider carrying a power bank to recharge your light via the Type-C port, especially if using higher brightness modes.
- Visibility: While this headlight provides excellent forward illumination, consider pairing it with a rear light for 360-degree visibility, especially in urban environments.
12. Warranty and Support
For warranty information, please refer to the seller's terms and conditions at the time of purchase. If you require technical support or have questions not covered in this manual, please contact the OFFBONDAGE customer service through your purchase platform.





