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Arco Floor Lamp

c. 1962

by Achille + Pier Giacomo Castiglioni
for Flos

The Arco Floor Lamp was one of the first lamps designed in 1962 by Achille and Pier Giacomo Castiglioni for the newly formed Flos – that it is still in produc­tion a half-century later is a testa­ment to Arco floor lamp’s absolute time­less­ness and popularity.

The form of a street lamp was the Castiglioni Broth­ers’ inspi­ra­tion for Arco floor lamp. A bril­liant design that features a recti­lin­ear marble base with a back­side groove into which a recti­lin­ear stain­less steel chan­neled, arched tele­scop­ing rod is affixed. The Arco floor lamp’s power cord is actu­ally concealed within this channel. These chan­nels are adjustable and lock into place when the desired arc of the lamp is achieved. The Arco floor lamp culmi­nates in a polished stain­less steel hemi­spher­i­cal hood that will pivot atop a perfo­rated round steel plate.

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FLOS Catalog 2021


FLOS Catalog 2021


Achille + Pier Giacomo Castiglioni


In 1938, brothers Livio and Pier Giacomo created the Castiglioni Studio, after a few years of collaboration they were joined by a third brother, Achille, in 1944. By 1952 the designs from the studio were helmed by Pier and Achille. As industrial designers, the brothers pushed the limits of design and materials. Receiving a collective achievement of 9 Compasso d'Oro awards. It is believed that over the course of their careers Achille and Pier created over 150 products. Castiglioni Studio had design relationships with Flos, Zanotta, Alessi, and many more. Over the course of their career as design collaborators, the aesthetics of their designs were so in-line with one another, that there was never a clear delineation between the stylistic approaches of either brother.

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