1. Introduction
This manual provides essential instructions for the safe and efficient use of your onerbl AC Power Adapter. Please read this manual thoroughly before using the product and retain it for future reference. This adapter is designed to provide reliable power to compatible devices, such as the Bunker Hill Security Camera 47546.

Image 1: Front and side view of the onerbl AC Power Adapter. The adapter is black with a standard US 2-prong plug and a barrel connector cable.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Do not disassemble or modify the adapter.
- Ensure the adapter is used with devices that match its voltage and current specifications.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep out of reach of children.
This adapter features built-in protections for enhanced safety:
- Over Voltage Protection: Safeguards against excessive voltage input.
- Over Heat Protection: Prevents overheating during operation.
- Short-Circuit Protection: Protects against damage from short circuits.

Image 2: Visual representation of the adapter's multiple protection features, including short-circuit, over-voltage, and over-current protection.
3. Setup
- Inspect the Adapter: Before use, visually inspect the adapter and its cable for any signs of damage. Do not use if damaged.
- Connect to Device: Plug the barrel connector end of the adapter cable into the power input port of your compatible device (e.g., Bunker Hill Security Camera 47546). Ensure a secure connection.
- Connect to Power Outlet: Insert the 2-prong plug of the adapter into a standard AC wall outlet (100-240V, 50/60Hz).
- Verify Power: Once connected, your device should receive power. Refer to your device's manual for specific power indicators.

Image 3: The AC adapter is shown plugged into a power strip, illustrating a typical setup for powering a device.
4. Operating
The onerbl AC Power Adapter is designed for continuous operation. Once properly connected, it will supply power to your device. No further user interaction is typically required during operation.
- Ensure adequate ventilation around the adapter to prevent heat buildup.
- Avoid placing heavy objects on the cable or adapter.
5. Maintenance
Minimal maintenance is required for this power adapter:
- Cleaning: Disconnect the adapter from the power outlet and the device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and moisture. Avoid tightly coiling the cable to prevent damage.

Image 4: Illustration of the durable design, highlighting the copper wire and PVC jacket of the cable for longevity.
6. Troubleshooting
If you encounter issues with your power adapter, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to device | Adapter not plugged in correctly Faulty power outlet Device issue | Ensure adapter is fully plugged into wall and device. Try a different power outlet. Test device with another known-good power source if available. |
| Adapter feels hot | Normal operation heat Poor ventilation Overload | Some warmth is normal. Ensure adapter has adequate airflow. Disconnect if excessively hot and allow to cool. Verify device power requirements. |
| Device not charging/powering efficiently | Incorrect adapter Cable damage | Confirm adapter specifications match device requirements. Inspect cable for kinks or breaks. |
If the problem persists after trying these solutions, please contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | onerbl |
| Input Voltage | AC 100-240V, 50/60Hz |
| Connector Type | Barrel Connector |
| Main Power Connector Type | US 2 Pin |
| Cable Length | Approximately 6.5 feet (76 inches) |
| Item Weight | 8 Ounces |
| Mounting Type | Wall Mount |
| Special Features | Over Voltage Protection, Over Heat Protection, Short-Circuit Protection, Travel-friendly design |

Image 5: Dimensions of the AC adapter (2.6 x 1.6 x 1.2 inches) and cable length (76 inches).

Image 6: Illustration of the extended cord design, showing the approximate 6.5 ft (6.6 ft in image) cable length for flexible placement.
8. Compatible Devices
This power adapter is compatible with various devices requiring a barrel connector and matching voltage/current specifications. It is specifically designed as a replacement for the Bunker Hill Security Camera 47546. Other compatible devices may include:
- CCTV Cameras
- Routers
- LED Strips
- Digital Photo Frames
- Humidifiers
- Other small electronic devices with compatible power input.

Image 7: A visual representation of the wide range of applications for this power adapter, including cameras, routers, and other electronic devices.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.