1. YOUR MODEL: Our led light kit is specially designed for lego up house with balloons kit. After adding our lights to the original lego up house blocks, different colors of lights and wires match your model perfectly, making it look advanced and gorgeous, adding some ambiance to your Christmas. 2. MATERIAL AND TECHNOLOGY: Our lego up led lights are compact and delicate. The combination of craftsmanship and handmade ensures better quality and details. The light wire will be hidden when installed on the model, achieving the perfect illumination effect of led lights, making it a great Christmas gift. 3. INSTALLATION GUIDE: Lights for up house lego set comes with detailed instruction in the form of pictures, guiding you step by step on how to install and use. It is easy to find the way and enjoy the process of DIY. 4. POWER SUPPLY SAFETY: All lights are powered by only 5v. Low voltage means more . Comes with USB cable and battery box (Excluding batteries), can be powered by power bank/wall charger/other device with usb port (the output voltage should be less than 6V), easy to operate. 5. PLEASE NOTE: Our product is only lights set included, not include the lego building blocks sets. If you have any questions, please feel to ask questions by QA, and we will answer your questions as soon as possible.