First invented in France in 1827, a LITHOPHANE ("Vision In Stone") is a porcelain engraving that virtually comes alive when illuminated from behind. The image is created by a panel of different thicknesses of translucent, kiln-fired porcelain. A breathtakingly detailed picture in warm sepia tones emarge when lit. These illuminated artworks are so detailed, that they are sometimes mistaken for photographs. THE DARK AREA AT THE BASE OF THE LITHOPHANE IS JUST A SHADOW IN THE PICTURE. IT DOES NOT SHOW WHEN BEING USED. We have Lithophanes in many products but the most popular Lithophane product is the plug-in Night Light. Our Night Lights are the perfect gift; reasonably priced and nicely gift boxed, including a history of the process and care literature. We have many designs available as night lights, in a variety of themes. Our exclusive clip mounting allows our Night Lights to be plugged into any electrical outlet, including outlets that are upside down.or if installed sideways be sure and tell us as it will require a flat panel. Most of our Night Lights are 3.5" wide by 4.5" tall.