12-Port Expansion Boards V2 (3-Pack)
SKU: B-BXD03_3
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12-Port Expansion Boards V2 (3-Pack) for LEGO® Light Kits & MOCs
Build large-scale and highly organized LEGO® lighting systems with the V2 12-port expansion board.
This module acts as a high-density distribution hub, allowing you to connect multiple lighting components such as LED lights, connecting cables, and power modules into a single structured system.
It is designed for advanced LEGO® lighting setups that require multiple branches and complex wiring layouts.
⚠️ V2 System Upgrade Notice
This product uses the upgraded V2 connector system:
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Reversible connectors (plug from either direction)
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Eliminates front/back orientation errors
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Improved usability and installation efficiency
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Not compatible with V1 systems
What It Does
⚡ Distributes power and signal across up to 12 ports
🔌 Connects multiple lighting components in one system
🧩 Supports large-scale modular lighting layouts
🔄 Enables complex multi-branch circuit design
Why You'll Love It
✔ Highest-density expansion board in the system
✔ Ideal for complex LEGO® lighting builds
✔ Reduces wiring clutter in large MOCs
✔ Enables scalable multi-building lighting setups
✔ Plug & Play installation — no soldering required
✔ Essential for advanced lighting architecture
Perfect For
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Large LEGO® Modular Cities
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Multi-building lighting systems
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Advanced MOC projects
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Exhibition or display installations
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High-density wiring layouts
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Full city-scale lighting setups
System Position
This product belongs to the Core Distribution Layer in LEGO® lighting architecture.
It works with:
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Dot Lights (interior lighting)
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Strip Lights (ambient lighting)
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Street Lights (exterior lighting)
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Patch Cables (connection system)
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Power Modules (system backbone)
Specifications
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Port Count: 12 Ports per board
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Quantity: 3 Boards per pack
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Size: 50mm × 6mm
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System: V2 Lighting System
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Function: High-density power & signal distribution
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Connector Type: Reversible plug system
Package Includes
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3 × 12-Port Expansion Boards V2
Important Notes
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Compatible only with V2 lighting systems
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Not compatible with V1 connectors
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LED lights and power modules sold separately
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Designed for internal system distribution only
LEGO® is a trademark of the LEGO Group, which does not sponsor or endorse this product.
Orders may ship from our CN, US, or EU warehouses, depending on stock availability and destination.
- Processing: 1–2 business days; 3–5 business days during peak seasons.
- Delivery: Estimated 6–12 business days.
- Tracking: Usually provided within 24 hours and may take up to 48 hours to update.
- Free Shipping: Available on orders over $69 in eligible regions. Other shipping rates are calculated at checkout.
- We currently do not ship to PO Boxes, APO, FPO, or DPO addresses.
We’re here to help if something isn’t right with your order.
- Before shipment: Orders may be cancelled or changed.
- After shipment: Orders can no longer be cancelled.
- Wrong or missing items: Please contact us within 15 days of delivery.
- Quality-related returns: Eligible within 30 days.
- Exchanges: Available within 15 days for eligible non-man-made defects.
- Returns are not accepted for change-of-mind or other personal reasons.
- Approved returns must be shipped back within 45 days.
For items damaged during transit, please contact us within 24 hours of delivery.
Your lighting kit is covered by a 2-year warranty for added peace of mind.
If you experience an eligible product issue during the warranty period, we’ll provide repair support or replacement parts as applicable. Customers may be responsible for related shipping and customs fees.
Need help? Contact our support team and we’ll assist you with troubleshooting and warranty service.
Common Questions
Find quick answers right here
No, only LED light kits.
Lightailing is pre-wired & easy to install for beginners. Briksmax has brighter lights and more DIY choices at higher price.
You can read the full explanation on our blog here: 👉https://www.lightailing.com/blogs/news/lightailing-vs-briksmax-light-different
Yes, detailed manuals and tutorial videos are provided.You can also view PDF instructions here: https://www.lightailing.com/pages/instruction.
We offer installation videos for most light kits. You can search with your set code on our YouTube channels:
Lightailing: https://www.youtube.com/@Lightailing/videos
Briksmax: https://www.youtube.com/@briksmax9383/videos
If you can’t find them, please email us at support@lightailing.com for help.
It depends on local customs rules. Check tax info after entering address at checkout.
Shipped within 1 business day, shipping notice will be sent later.
Delivery time varies by location. Check estimated arrival time at checkout, and full shipping details are in your order confirmation email.