DOES IT FIT? - NO LEGO SET IS INCLUDED!!!! COMPATIBILITY: This handmade, exclusive kit is used to light up the LEGO Disney Castle - Set 71040 (LEGO set not included) (PRODUCT FEATURES: Powered by USB, Brick Loot's Deluxe Disney Castle (Set 71040) Lighting Kit features a safe current for your LEDs INSTALLATION INSTRUCTIONS: Step-by-step instructions can be found on the Brick Loot website! Click on "LED Light Kit Instructions" BEST FOR DIY PROJECTS: Should you decide to use them for some other purposes, these light up kits are compatible with LEGO, KRE-O, Mega Bloks and other major brands bricks and baseplates. OUR MISSION: At Brick Loot, we genuinely care about the quality of our products and the satisfaction of our customers. Buy with confidence.