You turn off the light and the magic will begin.
Magic Light set consisting of tablet lights The method of use says that it is absolutely safe: no phosphorus, heavy metals. There are also many light pens. They work with built-in ultraviolet light bulbs.
I placed the pen near the tablet, pressed a button and a clear green line appeared. If you put more distance between the pen and the disc, the image will be more blurred. With this method, I was able to draw real pieces of art. By using many artistic styles I paint beautiful pictures by myself, even though the drawing is not a story that I really like.