PLEASE NOTE: THIS SET IS A LED LIGHTING KIT ONLY. LEGO SETS ARE NOT INCLUDED. ABOUT International Space Station LIGHTING KITBring magical shine to your International Space Station . This lighting kit is designed especially for the Lego Ideas Series International Space Station 21321. This highly detailed Lego model is a spectacle in itself, but when paired with Lightailing lighting kit, the charming model comes alive, not only during the day but also at night. Discover a world of fun and surprises with this cool realistic Lightailing light kit.The light is purely handmade. Plug in power, and light up your building blocks with our amazing design! ABOUT INSTALLATIONFollow Lightailing step-by-step instruction book to light up your International Space Station 21321, something amazing will happen at night. All our kits are plug and play - no electronics knowledge needed! Browse on the User Guide, which can be a great help in latter installing. Test the product to see if it works properly before installation. Prepare 3 AA batteries or brick separator in advance. WHAT'S INCLUDED- The set with customized led wire led light and bricks. AA Battery Pack (AA Batteries are not included). Step-by-step instructions for books. (Just as the LEGO set building way, but easier.) Universal instructions books. Original LIGHTAILING box with a good package.