1. Introduction
This manual provides essential instructions for the safe and effective use of your Metasources 24V AC/DC Adapter. This power supply is designed to be compatible with Dayette AP304, AP402, AP-304, AP-402 Air Purifiers, and Lyangel LY036SPS-240200U1, LY036SPS240200U1 models. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Your Metasources AC/DC Adapter is designed with multiple safety features to ensure reliable operation and protection for your devices. Adhere to the following safety guidelines:
- FCC Approved and Safety Certified: The adapter meets safety standards.
- Overcurrent Protection (OCP): Prevents damage from excessive current flow.
- Short-Circuit Protection (SCP): Automatically shuts off power in case of a short circuit.
- Overvoltage Protection (OVP): Safeguards connected devices from voltage surges.
- Fire-Resistance: Constructed with materials designed to resist fire.
- Overcharge Protection: Protects devices from being overcharged.
- Overpower Protection: Prevents damage from excessive power draw.
- Over Temperature Protection: Monitors and regulates internal temperature to prevent overheating.

Image 1: Overview of the 7-Point Safety Protection features integrated into the adapter.
Always ensure the adapter is used in a well-ventilated area and avoid covering it during operation. Do not expose the adapter to water or extreme temperatures.
3. Package Contents
Verify that all items are present in the package:
- 1 x Metasources 24V AC/DC Adapter
- 1 x AC Power Cord

Image 2: The Metasources 24V AC/DC Adapter and its included AC power cord.
4. Setup Instructions
Follow these steps to connect your Metasources AC/DC Adapter to your compatible device:
- Verify Compatibility: Ensure your device (e.g., Dayette AP304/AP402 Air Purifier) requires a 24V DC input and has a compatible barrel round connector.
- Connect AC Power Cord: Insert the AC power cord into the input port of the Metasources AC/DC Adapter.
- Connect to Device: Plug the barrel round connector of the adapter's output cable into the power input port of your Dayette Air Purifier or other compatible device.
- Connect to Power Outlet: Insert the AC power cord's plug into a standard 100-240V AC wall outlet.
- Power On Device: Once connected, power on your device according to its own operating instructions.

Image 3: The adapter showing its connection points for the AC power cord and the device.
5. Operating Instructions
The Metasources 24V AC/DC Adapter operates automatically once connected to a power source and a compatible device. It provides a stable 24V DC output for continuous operation.
- The adapter is designed for continuous use with compatible devices.
- It supports a wide input voltage range (100-240V AC), making it suitable for international use without a voltage converter.
- Disconnect the adapter from the wall outlet when not in use for extended periods.
6. Maintenance
To ensure the longevity and optimal performance of your adapter, follow these simple maintenance guidelines:
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and moisture when not in use. Avoid tightly coiling the cables to prevent damage.
- Cable Care: Regularly inspect the power cord and adapter cable for any signs of damage, such as fraying or exposed wires. Replace immediately if damage is found.
- Heat Dissipation: The adapter uses pure copper plates for efficient heat dissipation. Ensure adequate airflow around the adapter during operation to prevent overheating.

Image 4: Illustration of the adapter's internal heat dissipation design and cable durability features.
7. Troubleshooting
If you encounter issues with your Metasources AC/DC Adapter, refer to the following common troubleshooting steps:
- No Power to Device:
- Ensure the AC power cord is securely plugged into both the adapter and the wall outlet.
- Verify the adapter's output connector is firmly seated in your device's power input.
- Test the wall outlet with another device to confirm it is functional.
- Check for any visible damage to the adapter or cables.
- Device Not Charging/Operating Correctly:
- Confirm that your device requires a 24V DC input. Using an adapter with incorrect voltage can cause issues.
- Ensure the adapter's current output capacity meets or exceeds your device's requirements.
- If the adapter feels excessively hot, disconnect it and allow it to cool down. Ensure it is in a well-ventilated area.
- Adapter Making Unusual Noises or Smells:
- Immediately disconnect the adapter from the power outlet and your device.
- Do not attempt to use the adapter again. Contact customer support for assistance.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Metasources |
| Model Number | AP304 AP402 Power Supply |
| Input Voltage | 100-240V AC, 50/60Hz |
| Output Voltage | 24V DC |
| Connector Type | Barrel Round Connector |
| Compatible Devices | Dayette AP304, AP402, AP-304, AP-402 Air Purifier; Lyangel LY036SPS-240200U1, LY036SPS240200U1 |
| Product Dimensions | 6 x 4 x 2 inches |
| Item Weight | 9 ounces |
| Color | Black |
| Safety Features | OCP, SCP, OVP, Fire-Resistance, Overcharge, Overpower, Over Temperature Protection |
| Included Components | 1 AC Adapter, 1 AC Power Cord |
9. Warranty and Support
Your Metasources 24V AC/DC Adapter comes with a 24-month exchange warranty, providing peace of mind regarding its quality and performance.
For technical support, warranty claims, or any questions regarding your product, please contact Metasources customer service. Refer to the seller's information on your purchase platform for direct contact methods.
You can also visit the Metasources Store on Amazon for more information and product details.





