This paper roll becomes a lamp Paper

This is a lighting paper-torch that can be rolled up and used. It is made of Hina, a ballot paper developed by Takeya, which is not only smooth and flexible, but also has good ink-carrying properties. There are circuits arranged in a grid pattern printed on both sides of the paper, and seven small LED lights are attached to one side. The intensity of the light is determined by the diameter of the rolled cylinder. The smaller the diameter, the brighter and more concentrated the light.