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Light My Bricks Multi-Light Kit Connection Kit for LEGO Lighting$34.99
Multi-light kit connecting kits allow you to connect up to 4 light kits and power them using a USB Power Cable to a USB Power Bank or USB Power Adaptor that can connect to mains power. Simply swap out the battery packs with connecting cables. Then connect the connecting cables to ...Multi-light kit connecting kits allow you to connect up to 4 light kits and power them using a USB Power Cable to a USB Power Bank or USB Power Adaptor that can connect to mains power.
Simply swap out the battery packs with connecting cables. Then connect the connecting cables to an expansion board. Next, connect the expansion board to a USB Power Cable and select your power source (Power Bank or Power Adaptor).