1. Introduction
Thank you for choosing the SANJICHA 180FT 500 LED Warm White Christmas String Lights. This manual provides essential information for the safe and efficient operation of your new lighting product. Please read it thoroughly before installation and use, and retain it for future reference.
Important Safety Information
- Always ensure the plug is dry before connecting to a power source.
- Do not attempt to modify or repair the lights yourself. Contact qualified personnel for service.
- Keep away from open flames and excessive heat sources.
- Ensure proper installation to prevent tripping hazards.
2. Product Features
- 500 Warm White LEDs: Provides a bright, inviting glow suitable for various decorative purposes.
- Extended Length: 180 feet of lighting, ideal for decorating large areas such as rooms, gardens, and Christmas trees.
- 13 Dynamic Lighting Modes: Includes Combination, In Waves, Sequential, Slo-Glo, Chasing/Flash, Slow Fade, Twinkle/Flash, Steady On, Double Fast Blink (480/min), Fast Blink (480/min), Jump Light (240/min), Jump Light (60/min), and Shiny Star. Easily selectable via the adapter button.
- Dimmable Functionality: Adjustable brightness from 25% to 100% by holding the adapter button for 2 seconds.
- Integrated Timer: Features a 6-hour on/18-hour off cycle. Activate by double-clicking the adapter button (green indicator light on).
- Memory Function: Built-in chip retains the last selected lighting mode and brightness setting after power off.
- IP44 Waterproof Rating: Designed for both indoor and outdoor use, capable of withstanding rain and snow (ensure plug remains dry).
- Safe Low Voltage: Operates on 29 Volts with overheat protection, meeting safety standards.

3. Package Contents
- 1 x LED String Light (500 LEDs, 180FT)
- 1 x 29V UL Adaptor with Connector
- 1 x Instruction Manual
4. Setup Instructions
- Connect the String Light: Securely connect the LED string light to the 29V UL adaptor.
- Unwrap and Position: Carefully unwrap the string light and place it in your desired decoration area. Ensure the clear wire blends seamlessly with the background.
- Plug into Power: With adult setup required, plug the adaptor into a standard 120V electrical socket. The lights will turn on automatically.

5. Operating Instructions
5.1. Changing Lighting Modes
Once the lights are on, press the button located on the adaptor to cycle through the 13 available lighting modes. Each press will switch to the next mode in sequence.

5.2. Adjusting Brightness
To adjust the brightness level (25%-100%), press and hold the button on the adaptor for 2 seconds. The brightness will cycle through preset levels. Release the button when your desired brightness is reached.

5.3. Timer Function
The lights feature a 6-hour on/18-hour off timer. To activate the timer, quickly double-click the button on the adaptor. A green indicator light will illuminate to confirm the timer is active. Double-click again to deactivate the timer (green light off).

5.4. Memory Function
The built-in memory chip will automatically save your last selected lighting mode and brightness setting. When the lights are turned back on, they will resume the previously chosen settings.
6. Maintenance
- Cleaning: Disconnect from power before cleaning. Wipe lights and wires with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: When not in use, carefully coil the string lights and store them in a cool, dry place away from direct sunlight and moisture.
- Inspection: Periodically inspect the lights and wiring for any signs of damage, fraying, or loose connections. Discontinue use if any damage is found.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lights do not turn on. | No power, loose connection, or faulty adapter. | Check power outlet, ensure all connections are secure, and test the adapter if possible. |
| Lights flicker or dim unexpectedly. | Unstable power supply or damaged wiring. | Ensure a stable power source. Inspect wiring for damage; discontinue use if damaged. |
| Timer function not working. | Timer not activated or incorrect activation. | Double-click the adapter button to activate the timer (green light should be on). |
8. Specifications
- Brand: SANJICHA
- Model Number: MLS-D29V6WUC-O
- Light Color: Warm White
- Number of Light Sources: 500 LEDs
- Item Length: 180 Feet
- Power Source: Corded Electric
- Voltage: 29 Volts
- Special Features: 13 Lighting Modes, Timer & Memory Function, IP44 Waterproof
- Indoor/Outdoor Usage: Indoor/Outdoor
- Material: Plastic
- Item Weight: 1.54 pounds

9. Official Product Video
Super Bright String Lights by Shengyujie
This video demonstrates the super bright illumination of the SANJICHA string lights, showcasing their vibrant warm white glow suitable for various decorative applications. It provides a quick visual overview of the lights in action.
10. Warranty and Support
For any questions, technical support, or warranty inquiries regarding your SANJICHA 180FT 500 LED Warm White Christmas String Lights, please refer to the contact information provided at the point of purchase or visit the official SANJICHA store on Amazon.
Note: Each item has a unique code that we verify before shipping, ensuring product authenticity and quality.