1. Introduction
This manual provides essential instructions for the safe and effective use of your onerbl 5V AC/DC Adapter. Please read this manual thoroughly before using the product and retain it for future reference. This adapter is designed to provide power to compatible devices, specifically the Ceenwes Professional CWS-020 Rechargeable Dog Pet Hair Clipper.
2. Product Overview
The onerbl 5V AC/DC Adapter is a replacement power supply designed for specific electronic devices requiring 5V DC input. It features a 2-prong plug for AC input and a standard DC barrel connector for output.

Figure 2.1: Front view of the onerbl 5V AC/DC Adapter. This image shows the main body of the adapter with its 2-prong plug, the label indicating input/output specifications, and the attached DC output cable.

Figure 2.2: Front and side views of the adapter. This image provides a clearer perspective of the adapter's compact design from multiple angles.

Figure 2.3: Physical dimensions of the adapter and cable length. The adapter measures approximately 2.6 inches in length, 1.6 inches in width, and 1.2 inches in thickness. The cable length is approximately 76 inches.

Figure 2.4: Illustration of the adapter's internal smart chip providing multiple protection features. These include short-circuit protection, over-voltage protection, and over-current protection to ensure electrical safety.

Figure 2.5: Details on the quality control and durable design, highlighting the use of copper wire within the PVC jacket for enhanced durability and performance.

Figure 2.6: Examples of devices compatible with 5V adapters, illustrating the broad applicability of such power supplies for various electronic gadgets.
3. Specifications
| Input Voltage | AC 100-240V, 50/60Hz |
| Output Voltage | DC 5V |
| Output Current | 1A (1000mA) |
| Plug Type | 2-Prong US Plug |
| Cable Length | Approx. 76 inches (6.3 feet) |
| Compatible Devices | Ceenwes Professional CWS-020 Rechargeable Dog Pet Hair Clipper, and other devices requiring 5V DC 1A with a compatible barrel connector. |
| Protection Features | Over Voltage Protection, Over Heat Protection, Short-Circuit Protection, Over-Current Protection |
4. Setup
- Verify Compatibility: Ensure your device requires a 5V DC input and has a compatible power input port. This adapter is specifically designed for the Ceenwes Professional CWS-020.
- Connect to Device: Insert the DC barrel connector of the adapter firmly into the power input port of your Ceenwes CWS-020 clipper or other compatible device.
- Connect to Power Outlet: Plug the 2-prong AC plug of the adapter into a standard AC 100-240V wall outlet.
- Power On Device: Once connected, you can power on your device as usual. For rechargeable devices like the CWS-020, the adapter will begin charging the internal battery.

Figure 4.1: The adapter connected to a power strip. This illustrates a typical setup where the adapter is plugged into a multi-outlet power source.
5. Operation
The onerbl 5V AC/DC Adapter operates automatically once connected to a power source and a compatible device. It converts the AC wall current to the required 5V DC for your device.
- Ensure the adapter is securely plugged into both the wall outlet and your device.
- Monitor your device's charging indicator (if applicable) to confirm it is receiving power.
- Unplug the adapter from the wall outlet when not in use for extended periods.
6. Maintenance
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a dry, soft cloth to wipe the exterior. Do not use liquid cleaners or immerse the adapter in water.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Inspection: Periodically inspect the adapter and cable for any signs of damage, such as frayed wires, bent prongs, or cracks in the casing. If damage is observed, discontinue use immediately.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on/charging. |
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| Adapter feels unusually hot. |
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8. Safety Information
To ensure safe operation and prevent damage, please observe the following safety guidelines:
- Use this adapter only with devices that match its voltage (5V) and current (1A) specifications. Using it with incompatible devices may cause damage or fire.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to strong impacts.
- Do not attempt to open, modify, or repair the adapter. This will void any warranty and poses a safety risk.
- Keep out of reach of children.
- Unplug the adapter by grasping the plug, not the cord.
- The adapter is equipped with Over Voltage Protection, Over Heat Protection, Short-Circuit Protection, and Over-Current Protection to safeguard your devices and the adapter itself.
9. Warranty and Support
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Please have your purchase receipt and product model information available.
For further assistance, please refer to the contact information provided by the seller or manufacturer at the point of purchase.





