Easy to Install The easy-to-follow manual will guide you through assembling the lights step by step.The manual is very detailed and helpful to you. Power Supply The light set can be powered by batterys, but connecting to a wall adapter or USB-socket will be more convenient. Safe and Durable LED light kits are manually welded and strictly inspected, safe, durable, odorless, and free of safety hazards. Unique design LightGo LED Kit adopts a unique design that is compatible with practicality and aesthetics. Does the product include Lego model? Only the lighting kit in the product ，do not include Lego model. How do I light up the LED kit? The product includes a battery box, just plug the USB interface into the battery box(battery not included).And you can also connect to a wall adapter or USB-socket. How do I obtain the installation manual? Scan the QR code in the product to view the installation manual. If it fails, please contact the seller. Will the LED kit damage LEGO bricks？ Please don't worry, installing the LED kit will not damage anything. You can hide the wires under the bricks and make sure the wires are between the posts on the bricks. How difficult is it to install the LED kit? We provide a detailed installation manual, which is very easy to follow step by step and does not require any professional knowledge.