Among the luminaires present in the collection of the Plart Foundation, there is the iconic Ufo lamp designed in 1957 by Ettore Sottsass for Arredoluce, an Italian company founded by Angelo Lelli in 1943 and destined to mark the design of electric lighting fixtures in Italy for research, attention to detail and technological innovations applied to the creation of each product.

The lamp designed by Ettore Sottsass in the late 1950s can be seen as an important antecedent of the Italian radical design movement of the 1960s and, at the same time, a precursor of postmodernism in the 1980s. Ufo is characterized by a strong sculptural presence influenced by Sottsass's interest in constructivist sculpture and by an attention to functionality that also resides in the use of innovative materials. Ufo is made up of only two printed polymethylmethacrylate (PMMA) plates (one white, the other yellow) held together by four enameled metal rods, ending with eight colorless acrylic feet. The two PMMA elements, with their delicately swollen shapes, diffused the light with a soft and warm effect, hiding its source. The table lamp could also be flipped to produce an alternative lighting effect. Sottsass' early use of plastics for this lamp prefigures the intense experimentation with plastics in the lighting sector that took place in Italy during the 1960s, and is significant of an iconography of the period, that of the space exploration and which refers to the images of Sputnik, the first artificial satellite launched into orbit that same year.