Just Plug Expansion Hub

Use the Expansion Hub to connect up to 4 Light Hubs,
expanding your Just Plug Lighting System quickly and easily. Includes
four Connecting Cables for connecting Lights Hubs. Add an optional
Auxiliary Switch for convenient operation.

Powering Your Light System
You will need one Just Plug Power Supply (JP5770 US, JP5771 Euro,
JP5772 UK, or JP5773 Aus/NZ) to power up to 50 lights on your light
system, or if you want to power your system from a train power pack,
purchase Connecting Cables (JP5760).