1. Introduction
This manual provides comprehensive instructions for installing and operating your LIGHTAILING LED lighting kit, specifically designed for the LEGO 71837 NINJAGO City Workshops model. This kit enhances your LEGO model with custom lighting, bringing it to life. Please read all instructions carefully before beginning installation.
Note: The LEGO 71837 NINJAGO City Workshops model is NOT included with this lighting kit.

Image 1.1: The LEGO 71837 NINJAGO City Workshops model illuminated by the LIGHTAILING LED lighting kit.
2. Safety Information
- Keep small parts away from children under 3 years old to prevent choking hazards.
- Ensure the power source (USB or battery box) is appropriate for the kit's voltage requirements.
- Do not expose wires or LED components to excessive force or sharp objects.
- Avoid direct contact with water or other liquids.
- Disconnect power before performing any maintenance or adjustments.

Image 2.1: Product safety standards including RoHS, CE, and CPC certifications.
3. Package Contents
Verify that all components are present in your LIGHTAILING LED lighting kit package:
- All-in-one USB LED light kit (pre-wired for LEGO 71837)
- Customized wire lengths for specific LEGO sections
- Detailed paper instruction manual
- USB power cable
- Battery box (batteries not included)

Image 3.1: Overview of the package contents, showing the lighting kit components and instructions.

Image 3.2: Detailed view of the USB LED light kit, customized wires, and battery box.
4. Setup & Installation
The LIGHTAILING LED lighting kit is designed for easy, beginner-friendly installation with pre-measured spacing and hidden wiring to maintain the aesthetic integrity of your LEGO model.
4.1. Preparation
- Ensure your LEGO 71837 NINJAGO City Workshops model is fully assembled.
- Gather the lighting kit components and the paper instruction manual.
- Prepare a power source: either a USB power adapter (not included) or 3x AA batteries for the battery box (not included).
4.2. Installation Steps
Follow the detailed step-by-step instructions provided in the paper manual or refer to the online video guide for visual assistance. The online video guide can be accessed by scanning the QR code on the product packaging.
- Identify Lighting Points: The instruction manual will guide you to specific areas of your LEGO model where lights are to be installed.
- Connect LEDs: Carefully attach the LED lights to the designated LEGO bricks. The kit features customized wire lengths to simplify this process.
- Route Wires: Utilize the pre-measured spacing and hidden wiring design to neatly route the wires between LEGO bricks and sections. This ensures the wires are concealed and do not interfere with the model's appearance.
- Connect to Power Source: Once all lights are installed and wires are routed, connect the main power cable from the lighting kit to either the USB power adapter or the battery box.

Image 4.1: Key features of the LIGHTAILING kit: easy installation, precision craftsmanship, and hidden wiring.

Image 4.2: Important notes regarding the kit components and the absence of the LEGO model.
Video 4.1: Official LIGHTAILING video demonstrating the illuminated LEGO 71837 NINJAGO City Workshops model and showing various lit sections.
5. Operation
Once the lighting kit is fully installed and connected to a power source:
- Power On: If using a USB power adapter, plug it into a wall outlet or USB port. If using the battery box, ensure batteries are correctly inserted and switch the power button to "ON".
- Enjoy the Display: The LED lights will illuminate your LEGO model, enhancing its visual appeal.
- Power Off: To turn off the lights, unplug the USB adapter or switch the battery box to "OFF".

Image 5.1: The LEGO 71837 NINJAGO City Workshops model fully illuminated by the LIGHTAILING LED lighting kit.

Image 5.2: Detailed views of illuminated sections within the LEGO 71837 model.
6. Maintenance
- Cleaning: Use a soft, dry cloth to gently wipe dust from the LED lights and wires. Do not use liquid cleaners.
- Wire Management: Periodically check that all wires remain securely hidden and are not pinched or damaged.
- Battery Replacement: If using the battery box, replace batteries when the lights dim or stop working. Ensure correct polarity.
- Storage: If disassembling the LEGO model or storing the lighting kit, carefully remove the lights and wires to prevent damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lights do not turn on. | No power, loose connection, dead batteries. | Check USB connection or replace batteries. Ensure all wire connections are secure. |
| Some lights are dim or flickering. | Low battery power, loose connection, damaged LED. | Replace batteries. Check connections for the affected lights. If an LED is damaged, contact support. |
| Wires are visible or interfering with LEGO bricks. | Improper wire routing. | Refer to the installation guide or online video for proper wire routing techniques to conceal them effectively. |
If you encounter issues not listed here or require further assistance, please contact LIGHTAILING customer support.
8. Specifications
- Product Dimensions: 6.5 x 4.72 x 1.57 inches
- Item Weight: 6.3 ounces
- Model Number: 71837
- Power Source: USB or 3x AA Batteries (not included)
- Recommended Age: 3 years and up (for handling small parts)
9. Customer Support & Warranty
LIGHTAILING is committed to providing an easy and enjoyable installation experience. If you have any questions, concerns, or require assistance with your lighting kit, please do not hesitate to contact our customer support team.
For detailed warranty information, please refer to the product packaging or the official LIGHTAILING website.
Contact Information:
- Visit the LIGHTAILING Store on Amazon
- Refer to the contact details provided in your product packaging.





