Achille and Pier Giacomo Castiglioni, set of 4 table, ceiling and wall lamps Light Ball, Italy, 1965Created by the now legendary pair of brothers and Italian designers, the Castiglionis design a series of diffused light lamps using a simple white opaline sphere of industrial production, which reinterprets a low-cost object commonly used in the domestic environment. A polished brass metal frame houses, inside, the lamp holder of the incandescent light source and the threaded ring nut onto which the diffuser globe is screwed, thus creating, with modest variations of the frame, not only a table lamp but also, thanks to the ease of fixing to a vertical or horizontal support, a ceiling light and a wall lamp.