Designed by Castiglioni brothers and produced since 1962 by Flos, the Arco Floor Lamp solves a practical problem: the need for an overhead lamp that does not require drilling a hole in the ceiling. The design is inspired by street lamps. By inserting a steel arch into a heavy marble pedestal, the designers created a lamp that is able to illuminate objects eight feet away from its base—far enough to light the middle of a dining table.
Source: MoMA – https://www.moma.org/collection/works/1942