Accessory kit: The package contains string lights, expansion boards, connecting cables, battery case (battery not included), etc.

Function: LED lights will illuminate your building block model in the dark. They can add more charm to your model and show your building blocks to your family and friends.

Power supply: USB or battery power supply (battery needs to be prepared by yourself). The voltage should be lower than 5V to avoid burning. Installation tips: When installing, do not pull, bend or shake the parts excessively to avoid any damage.

Please note: 1. LED light kit only, LEGO set not included! 2. The lighting kit is not made by LEGO. 3. If you need clarification or have any questions, please contact us.