Product Description:This light kit is designed for LEGO 10257, you will feel amazing once you done the installation. Make your creations unique with your rich imagination and creativity. Let 's light up your bricks and bring them new vitality. Add luster to your home or work scene.Product Specifications:Name: LED building block lightMaterial: ABSWeight: 0.4 kgUse of power: Less than 5vUse mode: USB power supplyApplicable age: Teenagers (7-14 years old)Package Include: 1 * LED light kit (Including manual)Important Note: This is only an LED lighting kit. All the building block sets in the pictures and videos are only used for the light show, excluding the building model sets.