Introduction
The OFFBONDAGE Bicycle Light is a high-performance, durable, and waterproof front light designed to enhance visibility and safety for both mountain biking (MTB) and road cycling. Featuring multiple lighting modes, a powerful lumen output, and convenient USB charging, this light ensures you have adequate illumination for various riding conditions. This manual provides essential information for the proper setup, operation, and maintenance of your bicycle light.

OFFBONDAGE Bicycle Light (HYY1400 model shown)
Setup and Installation
The OFFBONDAGE Bicycle Light is designed for easy, tool-free installation on your bicycle's handlebar. Follow these steps to securely mount your light:
- **Prepare the Handlebar:** Ensure the handlebar area where you intend to mount the light is clean and free of obstructions.
- **Position the Gasket:** Place the appropriate gasket (if included, to fit different pipe diameters) onto the handlebar at the desired location.
- **Install the Fixed Base:** Attach the fixed base of the light mount to the handlebar, ensuring it is centered and stable. Tighten the screw on the mount by hand until it is snug.
- **Attach the Light:** Slide the bicycle light into the groove of the fixed base. Ensure the light clicks securely into place.
- **Adjust Angle:** Adjust the angle of the light to ensure optimal illumination of the road ahead without blinding oncoming traffic.
- **Final Check:** Carefully check that the screw is tight and the light is firmly secured to prevent movement during your ride.


Visual guide for handlebar installation.
Video demonstration of the bicycle light's features and installation.
Operation
Powering On/Off and Mode Selection
The bicycle light features multiple lighting modes to suit different riding conditions. The exact number and sequence of modes may vary slightly by model (HYY2600, HYY1400, HYY900).
- **To Turn On/Off:** Press and hold the power button for approximately 2-3 seconds.
- **To Change Modes:** Short press the power button to cycle through the available lighting modes.
Common Lighting Modes:
- **Near Light / Low Beam:** Provides a wide, close-range beam for urban riding or low-speed trails.
- **High Beam Bright:** Offers maximum illumination for high-speed riding or very dark environments.
- **Far and Near Full Light:** Combines both near and high beams for comprehensive visibility.
- **Flashing / Flicker Mode:** Increases visibility to others, especially during daytime or in traffic.
- **Daylight Mode (HYY1400, HYY900):** A specific mode designed for daytime visibility.

Illustration of various light modes.
Charging the Battery
The OFFBONDAGE Bicycle Light is equipped with a built-in rechargeable battery and a convenient Type-C charging port.
- **Locate the Charging Port:** The Type-C charging port is typically located on the side or rear of the light, often protected by a rubber cover.
- **Connect Charger:** Open the rubber cover and connect a standard USB Type-C charging cable to the light.
- **Connect to Power Source:** Plug the other end of the USB cable into a compatible USB power adapter (e.g., wall charger, computer USB port, power bank).
- **Charging Indicator:** The light will typically have an indicator to show charging status (e.g., a red light for charging, green/blue for fully charged).
- **Charging Time:** Refer to the specifications section for approximate charging times for each model.
- **Disconnect:** Once fully charged, disconnect the cable and ensure the rubber cover is securely closed to maintain waterproof integrity.

Type-C charging port for quick and easy charging.
Maintenance
Cleaning and Care
- **Cleaning:** Wipe the light body and lens with a soft, damp cloth. Avoid using abrasive cleaners or solvents that could damage the finish or lens.
- **Waterproof Rating:** The light has an IPX6 waterproof rating, meaning it is protected against powerful water jets. While it can withstand rain and splashes, avoid submerging it in water for extended periods. Ensure the charging port cover is always securely closed when not charging.
- **Storage:** Store the light in a cool, dry place when not in use. If storing for an extended period, charge the battery to about 50-70% capacity every few months to prolong battery life.

The aluminum alloy body provides waterproof protection against various weather conditions.
Battery Longevity
To maximize the lifespan of your light's battery:
- Avoid fully discharging the battery frequently.
- Do not expose the light to extreme temperatures (hot or cold) for prolonged periods.
- Use the provided or a certified Type-C cable and charger for optimal charging.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Battery is depleted. Power button not pressed correctly. | Charge the battery fully. Press and hold the power button for 2-3 seconds. |
| Light does not charge. | Charging cable or adapter is faulty. Charging port cover is not fully open. | Try a different Type-C cable and USB adapter. Ensure the rubber cover is fully open and the cable is inserted correctly. |
| Light is loose on the handlebar. | Mounting screw is not tight. Incorrect gasket used. | Tighten the mounting screw securely. Ensure the correct gasket is used for your handlebar diameter. |
| Light output is dim. | Low battery. Lens is dirty. | Recharge the battery. Clean the lens with a soft cloth. |
Specifications
Below are the detailed specifications for the OFFBONDAGE Bicycle Light models:

Visual comparison of the three available models.
| Feature | HYY2600-8000mAh | HYY1400-4000mAh | HYY900-2000mAh |
|---|---|---|---|
| Brand | OFFBONDAGE | ||
| Material | Aluminum + PC (Aluminum Plastic Shell) | ||
| Dimensions (Approx.) | 16.4cm x 4.5cm x 3.8cm | 15.1cm x 4.1cm x 3cm | 10.4cm x 4.5cm x 3.8cm |
| Weight (Net) | Approx. 325g | Approx. 236g | Approx. 200g |
| Lamp Beads | TG3*5 | TG3*6 | TG3*3 |
| Lumen Output (Max) | 2600 Lumen | 1400 Lumen | 900 Lumen |
| Battery Capacity | 8000 mAh | 4000 mAh | 2000 mAh |
| Charging Time (Approx.) | 9 hrs (Type-C) | 4.5 hrs (Type-C) | 3 hrs (Type-C) |
| Working Time (Approx.) | 2.5-7.5h | 2.5-4.5h | 2-3.5h |
| Power Bank Function | YES | NO | NO |
| Modes | 4 Modes (Near, High, Far+Near, Flashing) | 5 Modes (Near, High, Far+Near, Flashing, Daylight) | 5 Modes (Near, Far, Far+Near, Flicker, Daylight; Long press for DRL) |
| Waterproof Level | IPX6 | ||
| Mounting Placement | Handlebar | ||
| Certification | CE | ||
| Intelligent Sensing | No | ||
User Tips
- **Optimal Placement:** For the best visibility and to save handlebar space, consider mounting the light centrally on your handlebars.
- **Beam Angle:** Utilize the large angle floodlight feature to improve your lighting range and reduce blind spots, especially during night rides.
- **Daytime Visibility:** Make use of the Daylight mode (available on HYY1400 and HYY900 models) or flashing modes during the day to significantly increase your presence to other road users.
- **Charge Regularly:** To avoid unexpected power loss, make it a habit to charge your light after every few rides, especially if you use high-lumen modes frequently.
Warranty and Support
For any questions, technical support, or warranty claims regarding your OFFBONDAGE Bicycle Light, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase for warranty purposes.