Flos Arco

Arco dates to 1962, when Achille and Pier Giacomo Castiglioni designed a floor lamp to bring light above a table without fastening a suspension to the ceiling. Its long, curved reach gives the lamp a strong architectural presence while keeping its support on the floor.^[1,2,3]

Flos describes the arch as an adaptation of street lighting’s reach for domestic illumination. The comparison is spatial: a curved stem carries the light over a table while its support remains on the floor. The effect is an overhead source without a ceiling suspension.^[2,3]

The broad white Carrara-marble base counterbalances the arched stem. Its mass is not hidden behind a conventional upright: it becomes a defining part of the lamp’s profile, anchoring the long reach at floor level.^[1,2,3]

A central opening in the stone lets a pole pass through to help move the heavy lamp. This opening links the base’s visible form to the practical task of repositioning the lamp.^[1,2,3]

The stainless-steel stem telescopes, while the aluminum reflector can swivel and change height. The reflector is perforated, pressed and polished. These separate movements let the head be repositioned over a surface without changing the lamp’s broad floor-standing arrangement.^[1,2,3]

The 1962 Arco is the original floor-lamp design. Flos marked Arco’s fiftieth anniversary with an LED version; Arco K is a separate model. Those names identify distinct editions; their electrical details belong to their own specifications rather than the 1962 design.^[1,2,3]

Read Arco from the floor upwards. The Carrara-marble block counterbalances the reach; the stainless-steel stem telescopes; the aluminium reflector swivels and changes height. Those are separate tasks within one outline. The base’s hole belongs to transport with a pole, not to decoration or light projection.^[4]

For placement, sketch the base position and the intended lit surface as two different points. The lamp’s idea depends on their separation. Then allow room for the actual stem and head movement and follow the instructions for the exact edition. A photograph showing only the arch hides the floor space occupied by the counterweight, which is central to how Arco works.^[4]