The lamps in tuff by BG ARTE can be transformed for use on the ceiling, in the floor, wall, table, column eliminating or adding accessories or features. The entire blocks of tuff of Matera extracted from the ancient quarries in the Murgia area, are emptied and modeled by hand in the existing solid geometric shapes and composable in multi-faceted thus creating the characteristic lamps. They are characterized in the use applied in the field of lighting, conveying the effect of light sources placed inside the solid form that diffuse light through decorative cuts with specific shapes and designs including the very special DECORATION BG ARTE.