Designed by Achille Castiglioni on the occasion of the opening Flosshowoom in Turin in 1972, Bulb is a bulb lamp, partially satined to limit the reverb, housed on a lampholder with built-in switch and supported on a coil as an aluminum base, useful for coiling the excess cable. Pure and ironic as the total work of master Castiglioni, Lampadina is today one of the historical pieces of lighting design.