Charging: Powered using the included USB cable. Blocks: Each block features a different pixel material; grass, clay, diamonds and more. Lamp base: With a lamp base upon which kids can build their block creations. Building lamp: Get a building blocks lamp! Stackable: Comes with 16 blocks which can be stacked and arranged in any combination. Cosy light: Generates a calm, cosy light, ideal as a nightlight. | USB Building Blocks Lamp | Wowcher