Summary: If the light is not used properly, the child’s mental stress is created. If the art on the wall (e.g., picture box) is to be directed with a light, it is necessary to avoid the creation of a bright spot. Thus, when lighting is to be fired from the side to the art, the light is from the side, and the bright spot of the embroidery will not reflect directly on the eyes of the human being. Careful use of radio lights The poor use of lights can cause emotional stress among children. If th...