USAGE: The Light Set is used to light up 42179 Planet Earth and Moon in Orbit (NOT Include the Lego Set). PRODUCT FEATURE:Add warm white lighting to make your Planet Earth and Moon in Orbit model shine. Paired with ice blue light strips, it highly restores the image of the Earth, Moon, and Sun, enhancing the technological feel of the model, perfect for display and collection. TIPS: The Lighting set is made use of original material purely handmade. It contains 2 USB lighting kits, instruction guide, battery box. Prepare three AA Batteries, or USB Charger and Voltage should be less than 5V to avoid burning. INSTALLATION INSTRUCTION: The light set installation is done to your preference. Please install your led light carefully, no hard pulling and no need to bend or shake it. ABOUT US: Lightailing's light kits make installation easier, effortlessly lighting up your bricks. Additionally, we select premium bricks for both enhanced lighting effects and durability. If you have any problems, please do not hesitate to contact us. Have a happy shopping experience!