1. Introduction
Thank you for choosing the YSRSAI Bluetooth Smart LED Curtain Lights. These RGBIC curtain lights are designed to enhance various atmospheres, offering multiple lighting modes, easy installation, and convenient control. This manual provides essential information for safe and effective use of your new curtain lights.
2. Key Features
- Versatile Decoration: Ideal for holiday atmospheres (Christmas, Halloween, Thanksgiving), wedding parties, and general decorative lighting.
- Dual Control Options: Easily managed via the included 24-key IR remote control or the 'Surplife' mobile application.
- Customizable Lighting: Adjust brightness, set timers, select from a wide range of colors (RGBIC), and choose various lighting modes.
- Easy Installation: Equipped with hooks for simple setup.
- Flexible Power: Powered by a 5V USB connection, compatible with power banks and other mobile devices.
- Durable Design: IP68 waterproof rating ensures suitability for both indoor and outdoor use.
- Music Sync Mode: Built-in microphone allows lights to flash and change with the rhythm of your music.

Figure 1: Product comparison highlighting waterproof and durable design.
3. Specifications
| Parameter | Value |
|---|---|
| Item Type | RGBIC Curtain Light String (Bluetooth Version) |
| Brand Name | YSRSAI |
| Model Number | ws2812b |
| Input Voltage | DC 5V |
| Power Source | USB |
| Material | PVC, LED, ABS |
| Light Color | RGBIC |
| Control Method | Remote Control + App Control |
| LED Beads Quantity | 300 LEDs (3Mx2M) / 450 LEDs (3Mx3M) |
| Luminous Flux | 450 lm |
| Wattage | 10W |
| IP Rating | IP68 (Waterproof) |
| Size Options | W3MxH2M (9.8ft x 6.6ft); W3MxH3M (9.8ft x 9.8ft) |
| Certification | CE, FCC, RoHS |
| Installation Method | Self-contained |

Figure 2: Dimensions for the 3Mx2M (9.8ft x 6.6ft) curtain light with 15 strings and 20 LEDs per string.

Figure 3: Dimensions for the 3Mx3M (9.8ft x 9.8ft) curtain light with 15 strings and 30 LEDs per string.
4. Package Contents
Upon opening your package, please ensure all the following items are present:
- 1 x RGBIC Curtain Light String (3Mx2M or 3Mx3M, depending on your purchase)
- 1 x 24-Key IR Remote Control
- 1 x English User Manual

Figure 4: Included components: Surplife APP logo, 24-key IR remote control, USB DC5V connector, and coiled light strings.
5. Setup Instructions
Follow these steps to set up your RGBIC Curtain Lights:
- Unpack: Carefully remove the light string, remote control, and USB connector from the packaging. Untangle the light strings gently.
- Placement: Determine your desired installation area. The lights are suitable for both indoor and outdoor use due to their IP68 waterproof rating.
- Hang the Lights: Use the integrated hooks at the top of the light strings to hang them. Ensure the main horizontal string is securely fastened.
- Connect Power: Plug the USB connector into a 5V USB power source (e.g., a USB wall adapter, power bank, or computer USB port).
- Initial Power On: Once connected, the lights should illuminate. You can then proceed to control them using the remote or the app.

Figure 5: Example of RGBIC curtain lights installed on an outdoor patio.

Figure 6: IP68 Waterproof feature allows for versatile outdoor decoration.
Video 1: Unboxing, installation, and demonstration of various lighting modes.
6. Operating Instructions
6.1. Using the 24-Key IR Remote Control
The included remote control provides quick access to various functions. Ensure the remote is pointed towards the USB controller for optimal response.

Figure 7: 24-key IR remote control layout and functions.
- ON/OFF: Power the lights on or off.
- Brightness +/-: Adjust the light intensity.
- Dynamic Mode (Speed +/-): Control the speed of dynamic lighting effects.
- Points Mode (Points +/-): Adjust settings for specific point-based lighting effects.
- W/WW: Switch between White and Warm White colors.
- IC Set: Likely for setting up integrated circuit (IC) related functions or advanced modes.
- Auto: Cycles through various automatic lighting modes.
- Color Buttons: Select specific static colors (Red, Green, Blue, Yellow, Cyan, Purple, White).
- Music Button: Activates music sync mode.
- C1-C16: Pre-programmed scene modes or custom settings.
- Arrow Buttons: Navigate through modes or adjust parameters.
6.2. Using the 'Surplife' Mobile Application
For advanced control and customization, download the 'Surplife' app from your smartphone's app store.
- Download App: Search for 'Surplife' in the App Store (iOS) or Google Play Store (Android) and install it.
- Bluetooth Connection: Ensure Bluetooth is enabled on your smartphone. Open the Surplife app, and it should automatically detect your curtain lights. Follow any on-screen prompts to pair.
- App Features: The app offers a wide range of functionalities, including:
- Precise color selection (RGBIC).
- Dynamic scene modes (e.g., Colorful, Scenes, Festival, Mood).
- Music Rhythm mode with microphone sensitivity adjustment.
- Scheduling and timer functions.
- DIY custom lighting effects.

Figure 8: The 'Surplife' app interface for comprehensive control.
6.3. Music Sync Mode
The built-in microphone allows the lights to react to sound, creating a dynamic visual experience.
- Activate Music Mode via the remote control (Music button) or the 'Surplife' app.
- The lights will then flash and change colors in sync with ambient music or sounds.

Figure 9: Enjoy dynamic lighting with Music Rhythm mode.

Figure 10: RGBIC Smart Curtain Lights are suitable for multiple scenes including bedroom, Valentine's Day, outdoor, and Halloween decorations.
7. Maintenance
- Cleaning: Gently wipe the light strings with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, carefully coil the light strings and store them in a cool, dry place away from direct sunlight and extreme temperatures.
- Inspection: Periodically check the wires and LED beads for any signs of damage. Do not use if damaged.
- Waterproof Care: While IP68 rated, avoid submerging the USB connector or controller in water. Ensure all connections are secure when used outdoors.
8. Troubleshooting
- Lights not turning on:
- Ensure the USB power source is active and providing 5V.
- Check if the USB connector is securely plugged in.
- Press the ON button on the remote or in the app.
- Remote control not working:
- Ensure the remote's battery is not depleted.
- Point the remote directly at the USB controller.
- Remove any obstacles between the remote and the controller.
- App connection issues:
- Ensure Bluetooth is enabled on your smartphone.
- Make sure the lights are powered on.
- Restart the 'Surplife' app.
- Try unpairing and re-pairing the device in the app's settings.
- Lights are dim or flickering:
- Increase the brightness using the remote or app.
- Ensure the power source is stable and sufficient (5V, 2A recommended).
- Check for any loose connections.
- Music Sync not responding:
- Ensure music mode is activated.
- Increase the volume of the music or bring the sound source closer to the controller's microphone.
9. User Tips
- For best visual effects, install the curtain lights against a plain background or wall.
- When installing, gently unroll each string to prevent tangling.
- Experiment with different app scenes and DIY modes to create unique lighting displays for any occasion.
- Consider using a power bank for portable outdoor use, especially in areas without easy access to wall outlets.
10. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact the seller directly through the platform where you purchased the product. Keep your purchase receipt as proof of purchase.