1. Introduction
Thank you for choosing the CHEGIT BSL78 Smart LED DIY Curtain Lights. These versatile lights offer a wide range of customization options, including DIY patterns, text display, music synchronization, and various scene modes, all controllable via a smartphone app or remote control. Designed for both indoor and outdoor use, they are perfect for enhancing the ambiance of any occasion, from holidays and celebrations to daily room decoration.
2. Safety Information
- Ensure the USB power source is not exposed to water, as it is not waterproof.
- Do not attempt to modify or repair the lights yourself. Contact customer support if issues arise.
- Keep out of reach of children and pets.
- Avoid excessive pulling or bending of the light strings to prevent damage.
- Use only the provided power adapter or a compatible USB power source.
3. Package Contents
Verify that all items are present in your package:
- 1x Smart Fairy Curtain Lights (400 LEDs)
- 1x Remote Control (battery included)
- 1x User Manual

4. Specifications
| Feature | Detail |
|---|---|
| Model Number | BSL78 |
| Brand Name | CHEGIT |
| Dimensions (Width x Height) | 2M x 2M (approx. 6.56ft x 6.56ft) |
| LED Quantity | 400 LEDs |
| LED Color Options | 16 Million Colors |
| Luminous Flux | <60 |
| Power Source | DC (USB powered) |
| Waterproof Rating | IP67 (lights only, USB power not waterproof) |
| Control Methods | Bluetooth APP, Remote Control |
| Music Sync | Yes (4 vibrant music modes) |
| DIY Features | Graffiti, Animation, Pattern, Text |
| Lifespan | 50,000 hours |
| Certifications | RoHS, EMC, CE |
| Battery Type (Remote) | Button Cell |

5. Setup Instructions
5.1 Physical Installation
- Carefully unroll the curtain lights, ensuring the individual strings do not tangle.
- Hang the main horizontal string in your desired location. The lights are designed to hang vertically from this main string.
- Ensure the USB power cable can reach a power source without tension.
5.2 Power Connection
- Connect the USB plug of the curtain lights to a compatible USB power adapter (e.g., phone charger, power bank, computer USB port).
- Once connected, the lights should illuminate.
5.3 App Download and Connection
- Scan the QR code provided in the included User Manual or search for the "Hello Fairy" app on Google Play Store (for Android) or Apple App Store (for iOS).
- Download and install the app on your smartphone.
- Ensure Bluetooth is enabled on your smartphone.
- Open the "Hello Fairy" app. The app should automatically detect the nearby curtain lights.
- Follow the on-screen prompts to connect to your device. If the controller is re-powered, please reconnect the device with the Hello Fairy APP to synchronize the time.
5.4 Remote Control Usage
- The remote control comes with a button cell battery pre-installed. Remove any plastic tab if present to activate it.
- Point the remote control directly at the USB controller of the curtain lights for optimal response.
6. Operating Instructions
6.1 App Control Features
The "Hello Fairy" app provides extensive control over your curtain lights:
- Built-in Scene Modes: Choose from over 100 holiday/celebration patterns and dynamic scene modes.
- Text Mode: Input any text to be displayed dynamically on the lights.
- DIY Mode: Draw custom patterns or upload images to create unique displays.
- Music Sync: Utilize the built-in high-sensitivity microphone to synchronize light patterns with music. Features 4 vibrant music modes (Energy, Rhythm, Rolling, Spectrum).
- Color Adjustment: Select from 16 million colors or adjust them manually.
- Timer/Schedule: Set specific on/off times for the lights.
- Group Control: Control up to 4 sets of curtain lights simultaneously with synchronized patterns.





6.2 Remote Control Functions
The remote control allows for basic operation without the app. Refer to the remote's button layout for specific functions such as power on/off, mode selection, brightness adjustment, and color changes.
7. Maintenance
- Cleaning: Gently wipe the LED strings with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, carefully coil the lights to prevent tangling and store them in a cool, dry place away from direct sunlight.
- Battery Replacement (Remote): If the remote control stops responding, replace the button cell battery with a new one of the same type.
8. Troubleshooting
- Lights not turning on: Ensure the USB power source is connected and functioning correctly. Check if the power button on the remote or app is activated.
- App not connecting: Make sure Bluetooth is enabled on your phone and the lights are within range. Try restarting the app or reconnecting the device in the app settings. If the controller was recently re-powered, reconnect it via the app.
- Remote control not working: Check the battery in the remote control and replace it if necessary. Ensure there are no obstructions between the remote and the USB controller.
- Lights flickering or displaying incorrect patterns: Try resetting the lights by unplugging and re-plugging the USB power. Ensure the app is updated to the latest version.
9. User Tips
- For best results with music sync, place the light controller near the audio source.
- When using multiple sets of lights, utilize the app's group control feature to synchronize patterns and effects for a cohesive display.
- Experiment with the DIY mode to create personalized messages or artistic patterns for special events.
- Remember that while the light strings are IP67 waterproof, the USB power connection is not. Ensure it is protected from moisture when used outdoors.

10. Warranty and Support
For warranty information or technical support, please refer to the seller's policies or contact their customer service directly. Keep your purchase receipt for any warranty claims.

