Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your YEELIGHT Smart 40 Ft RGB LED Strip Light. This smart lighting solution offers versatile illumination with over 20 dynamic lighting effects, music synchronization capabilities, and extensive DIY color customization, all controllable via Bluetooth and the dedicated YEELIGHT application. Please read this manual thoroughly before use to ensure proper functionality and safety.

Image: The YEELIGHT Smart RGB LED Strip Light packaging, showing the coiled light strip and a smartphone displaying the control app.
What's in the Box
- String Light
- Control Box
- Adapter
- User Manual
- Alcohol Pads
Setup and Installation
Follow these steps for proper installation of your LED strip light:
- Step 1: Prepare the Surface. Wipe the surface where the light strip will be installed using the provided alcohol pads to ensure it is clean and smooth. This promotes optimal adhesion.
- Step 2: Apply the Light Strip. Peel off the protective backing from the light strip and firmly secure it to the prepared surface. Apply even pressure along the entire length.
- Step 3: Adjust Length (Optional). If necessary, cut off any excess length of the light strip at the designated cutting marks. Refer to the product video for guidance on safe cutting procedures.
- Step 4: Power On and Connect. Connect the light strip to the control box and then to the adapter. Plug the adapter into a power outlet. Use the control box or the YEELIGHT app to control the light strip.

Image: A visual guide demonstrating the four-step installation process for the LED strip lights.
Operating Instructions
App Control
The YEELIGHT Smart 40 Ft RGB LED Strip Light is primarily controlled via the YEELIGHT mobile application, available for both iOS and Android devices. Through the app, you can:
- Adjust lighting color and brightness.
- Select from over 20 preset lighting effects.
- Create and save custom DIY color schemes.
- Set schedules and timers for automatic operation.
- Access music synchronization features.

Image: A smartphone screen showing the intuitive interface of the YEELIGHT app, allowing users to customize colors and effects.
Music Synchronization
The light strip features a built-in microphone that allows it to react to ambient sounds and music. Activate the music sync mode through the YEELIGHT app to experience dynamic lighting effects that pulse and change with the rhythm of your audio. This feature is ideal for parties, gaming, or creating an immersive atmosphere.

Image: A room filled with colorful light from the LED strip, with individuals enjoying music, demonstrating the music sync feature.
Video: An official product video showcasing the YEELIGHT Outdoor Strip Permanent Light, demonstrating various lighting effects suitable for festive occasions and parties.
Maintenance
To ensure the longevity and optimal performance of your YEELIGHT Smart LED Strip Light, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the surface of the LED strip with a dry, soft cloth to remove dust. Avoid using harsh chemicals or abrasive cleaners, as these can damage the strip.
- Adhesion: If the strip begins to lose adhesion, ensure the surface is clean and dry before re-applying. For long-term stability, consider using additional adhesive clips (not included).
- Storage: If storing the light strip for an extended period, ensure it is coiled loosely and kept in a dry, cool place away from direct sunlight.
Troubleshooting
If you encounter issues with your YEELIGHT Smart LED Strip Light, refer to the following common solutions:
- Lights Not Turning On:
- Check all power connections to ensure they are secure.
- Verify that the power adapter is plugged into a working electrical outlet.
- Ensure the control box is properly connected to the light strip.
- App Connectivity Issues:
- Ensure Bluetooth is enabled on your smartphone and the device is within range of the light strip.
- Restart the YEELIGHT app.
- Try unplugging and replugging the light strip to reset its connection.
- Update the YEELIGHT app to the latest version.
- Incorrect Colors or Flickering:
- This can sometimes occur due to loose connections or damage to the strip. Inspect the strip for any visible damage.
- Ensure the app settings are correctly configured for the desired colors and effects.
If problems persist, please contact YEELIGHT customer support for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | YEELIGHT |
| Model Number | YLYDD-0039 |
| Color | White (Strip), Multicolor (Light) |
| Indoor/Outdoor Usage | Indoor |
| Light Source Type | LED |
| Power Source | Corded Electric |
| Item Length | 40 Feet |
| Number of Light Sources | 216 |
| Wattage | 18 watts |
| Control Method | App (Bluetooth) |
| Material | Copper, Polystyrene, Polyvinyl Chloride |
| Item Weight | 9.3 ounces |
| Package Dimensions | 5.35 x 5.28 x 2.05 inches |
| Date First Available | October 8, 2024 |
Warranty and Support
For warranty information, technical support, or further inquiries regarding your YEELIGHT Smart 40 Ft RGB LED Strip Light, please visit the official YEELIGHT Store on Amazon or refer to the contact information provided in your product packaging.





