4-Port Expansion Board V2
SKU: LD001-026
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4-Port Expansion Board V2 for LEGO® Light Kits & MOCs
Expand your LEGO® lighting system with a compact and reliable connection hub.
The 4-Port Expansion Board V2 allows you to connect multiple LED lights, connecting cables, and power accessories into a single lighting circuit. It's the ideal solution for custom LEGO® MOC projects, modular buildings, and large display models where multiple lighting components need to work together.
Designed with our upgraded Version 2.0 connectors, installation is easier, safer, and more user-friendly than ever.
Why You'll Love It
✔ Connect up to 4 lighting components with one expansion board
✔ Create clean and organized wiring for complex lighting builds
✔ Ideal for DIY LEGO® light kits, MOCs, and custom lighting projects
✔ Compact design fits easily inside most LEGO® models
✔ Plug & Play installation — no soldering required
✔ Compatible with LIGHTAILING Version 2.0 lighting components
Version 2.0 Upgraded Connectors
The Expansion Board features our redesigned V2 connectors for improved usability.
New Version
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Reversible connectors can be inserted from either side
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Faster and easier installation
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Reduces incorrect connections
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More secure and reliable electrical contact
Please Note
Version 2.0 connectors are not compatible with previous-generation LIGHTAILING or BRIKSMAX connectors.
Perfect For
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LEGO® Modular Buildings
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LEGO® City layouts
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LEGO® Technic lighting projects
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Custom MOCs
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Display cabinets
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DIY lighting system expansion
Specifications
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Ports: 4
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Connector Version: V2.0
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Compatible with LIGHTAILING Version 2.0 components
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Compact PCB design for easy installation inside LEGO® models
Package Includes
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1 × 4-Port Expansion Board V2
Important Notes
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This product is an expansion accessory only and does not include LED lights, connecting cables, power supplies, or LEGO® sets.
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Compatible only with Version 2.0 lighting accessories.
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Not compatible with previous-generation connectors.
LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize, 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.