This product does not need external power, because it will swing with the sun or bright lights. With the principles of optics, under the sun, the light energy will convert into kinetic energy, and then the leaves will swing automatically. Green leaves can also relieve the fatigue of your eyes, which is very suitable for office supplies, home decoration and decoration. "automotive interior. car decorations interior car decorations wedding car decorations birthday car decorations for women interior car decorations cute car decorations for bedroom car decorations exterior car decorations interior men hanging car stickers car stickers for kids car stickers flowers car stickers for kids