Come and Check Our Promo Solutions.The light source is designed in a lamp housing, and a separate closed design is adopted to ensure the safety of the light source, circuit, and electronic components. The LED lights are arranged in a line to allow the light to pass through the paper carving layer more evenly.Both USB and battery are used. 3 AAA batteries (not included). Equipped with a USB data cable, which is very convenient. You can give 3D paper carving lights to people you like, and let them enjoy a moment of tranquility is a good choice.Made of durable spray-painted ABS frame and environmentally friendly paper. Multiple contours are superimposed to form a dreamy soft light, and each layer has a unique contour design. It will be a powerful manifestation of art appreciation. Pls check inventory and detailed info with us before placing your orders.