1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl AC-DC Adapter. This power supply is designed to convert AC power from a wall outlet into the DC power required by compatible devices, such as the Geuuap YF-01 Sunrise Alarm Clock, Wake Up Light, White Noise Sound Machine, and Bluetooth Speaker.
The adapter ensures your device operates correctly or charges its internal battery. Please read this manual thoroughly before use and retain it for future reference.
2. Package Contents
- 1 x onerbl AC-DC Adapter (USB-C 5V)
- 1 x Compatible Charging Cable (USB-C to device-specific connector, if included)
Note: The specific cable type (e.g., USB-C to USB-C, USB-C to Micro-USB) may vary based on your device's charging port. Ensure you use the correct cable for your device.
3. Setup and Connection
Follow these steps to connect your onerbl AC-DC Adapter to your device:
- Identify Ports: Locate the USB-C port on the onerbl AC-DC Adapter and the charging port on your Geuuap YF-01 device (or other compatible device).
- Connect Cable to Adapter: Insert one end of the charging cable (USB-C connector) into the USB-C port on the onerbl AC-DC Adapter.
- Connect Cable to Device: Insert the other end of the charging cable into the charging port of your Geuuap YF-01 device. Ensure a secure connection.
- Plug into Wall Outlet: Insert the prongs of the onerbl AC-DC Adapter into a standard electrical wall outlet.
Your device should now begin to power on or charge. Refer to your device's manual for specific charging indicators.

Image 1: A generic representation of a power adapter and charging cable. The image displays a black USB wall adapter with two flat prongs for a North American outlet and a black USB-A to Micro-USB cable. Please note: While this image illustrates a typical power setup, the onerbl product described is a USB-C 5V AC/DC adapter, and the cable type will match your device's USB-C input.
4. Operating Instructions
The onerbl AC-DC Adapter is designed for straightforward operation:
- Once properly connected to your device and a power outlet, the adapter will automatically supply power.
- There are no user-adjustable settings on the adapter itself.
- Ensure the adapter is always used within its specified voltage and current ratings to prevent damage to the adapter or your device.
5. Maintenance and Care
To ensure the longevity and proper functioning of your adapter:
- Cleaning: Disconnect the adapter from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or abrasive materials.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures when not in use. Avoid tightly coiling the cable to prevent damage.
- Handling: Do not drop, disassemble, or attempt to repair the adapter. Avoid exposing it to water or high humidity.
- Cable Integrity: Regularly inspect the cable for any signs of wear, fraying, or damage. Replace the cable if any damage is observed.
6. Troubleshooting
If you encounter issues with your onerbl AC-DC Adapter, consider the following:
- Device Not Powering On/Charging:
- Ensure the adapter is securely plugged into a working wall outlet. Test the outlet with another device.
- Verify that the charging cable is firmly connected to both the adapter and your device.
- Check if the charging cable is damaged. Try using a different, compatible USB-C cable if available.
- Confirm that your device is compatible with a 5V 2A (10W) power supply.
- Adapter Feels Warm: It is normal for power adapters to become slightly warm during operation. If the adapter becomes excessively hot, disconnect it immediately and contact support.
- Intermittent Power: Check all connections for looseness. Ensure the cable is not bent or crimped.
If these steps do not resolve the issue, please refer to the support information provided with your purchase.
7. Specifications
| Product Type | AC-DC Power Adapter |
| Brand | onerbl |
| Input Voltage | 100-240V AC (Global Compatibility) |
| Output Voltage | 5V DC |
| Output Current | 2A (2000mA) |
| Output Power | 10W |
| Connector Type | USB-C (Output Port) |
| Compatibility | Geuuap YF-01 Sunrise Alarm Clocks, Wake Up Light, White Noise Sound Machine, Bluetooth Speaker, and other devices requiring 5V 2A USB-C power. |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| ASIN | B0DFGJ8D89 |
8. Warranty and Support
Specific warranty information for this onerbl AC-DC Adapter is typically provided at the point of purchase or included with the product packaging. Please refer to those documents for details regarding warranty coverage and duration.
For technical support or inquiries, please contact the seller or manufacturer directly through the platform where the product was purchased. Ensure you have your purchase details and product ASIN (B0DFGJ8D89) available when contacting support.





