Les Verticales de Gras 305THE "PLUMB BOB" OF THE LUMINAIRE Why are Lampe Gras wall lamps used around the world? Even in Japan, a country whose usual house structure rarely allows for them, our wall lights have found their place in contemporary architecture. The wall lamps and ceilings in the Lampe Gras collection are surprising and seductive because they fill the space and play with the void by drawing straight and oblique lines. For its is the balancing act that fascinates.