1. Product Overview
This LIGHTAILING LED Light Kit is designed to illuminate the LEGO Creator Expert The Assembly Square building set (LEGO Model 10255). The kit enhances the visual appeal of your model by adding intricate lighting details.
Kit Contents:
- 5 USB Light kits
- Instruction guide
- Battery box
- 1 USB connector
The components are crafted from original materials and assembled by hand to ensure quality and compatibility.

2. Setup and Installation
The LIGHTAILING LED Light Kit is designed for integration with your existing LEGO Creator Expert The Assembly Square (Model 10255) set. Please note that the LEGO model itself is not included with this light kit.
Power Requirements:
- Three (3) AA batteries (not included) are required for the battery box.
- Alternatively, a USB charger can be used. Ensure the voltage is less than 5V to prevent damage to the lights.
Installation Guidelines:
- Refer to the included instruction guide for detailed, step-by-step installation procedures.
- Install the LED lights carefully. Avoid hard pulling, bending, or shaking the wires and components to prevent damage.
- The installation process may involve disassembling parts of your LEGO model to properly route and secure the light wires.
- Plan the placement of wires to ensure they are discreet and do not interfere with the model's structure or appearance.

3. Operating Instructions
Once the LIGHTAILING LED Light Kit is fully installed and connected to a power source (either AA batteries in the battery box or a USB charger), the lights will illuminate your LEGO model.
- To Power On: Ensure batteries are correctly inserted into the battery box or the USB connector is plugged into a compatible 5V USB power source.
- To Power Off: Disconnect the USB connector from the power source or remove the batteries from the battery box.
There are no additional controls for brightness or light patterns; the lights operate in a steady-on mode when powered.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your LIGHTAILING LED Light Kit.
- Cleaning: Gently dust the LED lights and wires with a soft, dry cloth. Avoid using liquid cleaners directly on the electrical components.
- Wire Management: Periodically check that all wires are securely in place and not pinched or strained. Re-route any loose wires to prevent damage.
- Battery Replacement: If using batteries, replace all three AA batteries simultaneously when lights begin to dim or cease to function. Do not mix old and new batteries.
- Storage: If storing the LEGO model with the light kit installed, ensure it is kept in a dry, dust-free environment away from direct sunlight and extreme temperatures.
5. Troubleshooting
If you encounter issues with your LIGHTAILING LED Light Kit, refer to the following troubleshooting steps:
- Lights Not Illuminating:
- Verify that the power source (batteries or USB charger) is correctly connected and functional.
- If using batteries, ensure they are new and inserted with the correct polarity.
- Check all connections between the light strings and the USB connector/battery box for secure fit.
- Inspect wires for any visible damage, such as cuts or pinches.
- Lights Are Dim:
- If using batteries, they may be low and require replacement.
- If using a USB charger, ensure it provides sufficient power and is functioning correctly.
- Individual Lights Not Working:
- Carefully check the connection of the specific light or light string.
- Inspect the individual LED for physical damage.
If these steps do not resolve the issue, please contact LIGHTAILING customer support for further assistance.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | LIGHTAILING |
| Model Number | 10255 |
| Product Dimensions | 7.68 x 5.71 x 1.77 inches (packaging) |
| Item Weight | 7.1 ounces |
| Power Source | 3 AA batteries (not included) or USB charger (<5V) |
| Manufacturer Recommended Age | 6 years and up |
| Compatibility | LEGO Creator Expert The Assembly Square (Model 10255) |
7. Warranty and Support
LIGHTAILING is committed to providing quality products and customer satisfaction. While specific warranty details are not provided in this manual, if you encounter any issues or have questions regarding your LED Light Kit, please contact LIGHTAILING customer service.
For support, refer to the contact information provided in your product packaging or visit the official LIGHTAILING website.





