1. Introduction
Thank you for purchasing the U20 10W QI Wireless Charging LED Desk Lamp. This multifunctional device combines an eye-protecting LED desk lamp with a 10W wireless charger, a perpetual calendar display for date, time, and temperature, and a colorful RGB night light. Please read this manual carefully before use to ensure proper operation and to maximize the product's lifespan.
2. Safety Information
- Do not disassemble, repair, or modify the product.
- Keep the product away from water, moisture, and high temperatures.
- Use only the specified power adapter (USB power: 5W) to avoid damage.
- Avoid placing metal objects on the wireless charging pad during use.
- Ensure the lamp is placed on a stable, flat surface.
- Clean the lamp with a soft, dry cloth. Do not use abrasive cleaners or solvents.
3. Package Contents
- 1x U20 LED Desk Lamp
- 1x User Manual
- 1x USB Type-C Cable (Power Adapter not included, use a standard 5W USB power adapter)
4. Product Overview
The U20 desk lamp is designed for versatility and convenience, featuring:
- Eye Protection LED Lighting: Adjustable brightness and color temperature for various tasks.
- 10W QI Wireless Charging: Integrated into the base for compatible smartphones.
- Perpetual Calendar Display: Shows date, time, and ambient temperature.
- Colorful RGB Night Light: A 'breathing' light effect at the base for ambiance.
- Multi-Angle Adjustment: Foldable design for optimal lighting angles.






5. Specifications
| Feature | Specification |
|---|---|
| Product Model | UL-U20 |
| USB Power Input | 5W |
| Wireless Charging Output Power | 10W |
| Maximum Power Consumption | 22W |
| Night Light Power | 3W |
| Color Temperature | 3000K±400K, 4000K±400K, 5000K±400K |
| Compatible Devices (Wireless Charging) | Phones (QI-enabled) |
| Connector Type | Type C |
| Origin | Mainland China |

6. Setup Guide
- Unpack: Carefully remove the lamp and all accessories from the packaging.
- Positioning: Place the lamp on a stable, flat surface where you intend to use it.
- Power Connection: Connect the provided USB Type-C cable to the lamp's power input port, then plug the other end into a compatible 5W USB power adapter (not included) and into a wall outlet.
- Initial Power On: The display should light up, and the lamp will be ready for use.
7. Operating Instructions
The U20 lamp features intuitive touch controls located on the lamp arm.
- Desk Lamp Function:
- Power On/Off: Touch the power symbol button (
) to turn the main lamp on or off. - Brightness Adjustment: Use the 'Up' (
) and 'Down' (
) arrow buttons to increase or decrease the brightness. - Color Temperature Adjustment: Touch the 'Mode' (
) button to cycle through different color temperature modes (e.g., warm white, natural white, cool white).
- Power On/Off: Touch the power symbol button (
- Wireless Charging:
- Place your QI-compatible smartphone directly onto the wireless charging pad located on the lamp's base.
- Ensure the phone is centered on the pad for optimal charging. A charging indicator (if present) or your phone's display will confirm charging has begun.
- Colorful Night Light:
- Touch the night light button (
) to activate the RGB night light. - Press again to cycle through different colors or modes (e.g., static color, breathing effect).
- Touch the night light button (
- Calendar, Time, and Temperature Display:
- The display automatically shows the current date, time, and ambient temperature.
- Setting Time/Date: Look for small buttons near the display (often labeled 'SET', 'MODE', 'UP', 'DOWN'). Press 'SET' or 'MODE' to enter setting mode, then use 'UP'/'DOWN' to adjust values and 'SET'/'MODE' again to confirm and move to the next setting.
- Angle Adjustment:
- The lamp arm can be folded and adjusted up to 180 degrees.
- The lamp head can be tilted up to 90 degrees. Adjust gently to your desired lighting angle.
8. Maintenance
- Cleaning: Disconnect the power before cleaning. Use a soft, dry, lint-free cloth to wipe the lamp. Do not use liquid cleaners or sprays directly on the lamp.
- Storage: If not in use for an extended period, store the lamp in a cool, dry place, away from direct sunlight.
9. Troubleshooting
- Lamp not turning on:
- Check if the power cable is securely connected to both the lamp and the power adapter/outlet.
- Ensure the power outlet is functional.
- Wireless charging not working:
- Verify your device is QI-compatible.
- Ensure your device is correctly centered on the charging pad.
- Remove any thick phone cases that might interfere with charging.
- Check if there are any metal objects between your phone and the charging pad.
- Ensure the lamp itself is powered on.
- Display is blank or incorrect:
- Check power connection.
- If time/date is incorrect, refer to the 'Setting Time/Date' section in Operating Instructions.
10. User Tips
- The night light has a power of 3W, making it suitable for subtle ambient lighting without being too bright.
- The lamp supports 10W wireless charging output, providing efficient power to compatible devices.
- While not explicitly detailed in the main product description, similar Yeelight products often use Bluetooth and Zigbee for communication, which might allow for smart home integration or app control if available for this model.
11. Warranty and Support
For warranty information and customer support, please refer to the seller's policies or contact the point of purchase. Keep your purchase receipt as proof of purchase.