With Guise Stefan Diez has discovered a new potential use for LED technology in contact with matter: The light emanates from the piece of glass, while the source remains invisible. With this approach Guise achieves a magical effect and at the same time is fully functional. Because of the transparency of the glass when switched off the lamp almost disappears. When switched on it expresses a luminous and almost magnetic presence. The wall sconce version with a different formal expression features a glass disk that gives off a perimeter glow where the Led light source is also hidden. When turned off it becomes fused with its background, when on it evokes a solar eclipse.