Size options: Choose from three options - 8cm, 10cm or 18cm. 3D starry sky light: Get your hands on a 3D starry sky light. Unique controls: This new design includes a sliding ability, so the light effect can be moved across the room if you so choose. Colour changing: Light includes 16 different colour options and different projection frequencies - pop it on flash, fade, strobe or smooth! Rechargeable: The built in USB rechargeable battery takes two hours to fully charge, and runs for six to eight hours after a full charge. Gift idea: A lovely gift for birthdays, Christmas and other holidays! 3D Starry Sky Light | Living Social