This LEGO light set really brings the set to life. The lights look amazing when lit up, it’s gorgeous and allows you to see all the little details that are hidden from all the shadows. HOW TO INSTALL? The lights are set in the pre-drilled bricks Install the lights and wires as building the blocks Hide the wire in the cracks between two bricks Wind the wire into the groove of the building block Read more USB or battery pack to power supply Powered by USB port. You can plug it into a power bank, a laptop port, and anywhere have a USB adapter. Use the included battery holder. AAA Batteries that need to be purchased additionally. PACKAGE INCLUDE 4* Lights Belt 1*String Light 1*AAA Battery Holder 1*USB Power Cord 1*Expansion Board Read more Online instruction Find the Website: lightingmanuals.com Type the SKU: GC20 Click on the picture to download the manual/watch video Read more Read more Read more