Orsa is the embodiment of precision. An elegant pendant light pared down to its essential elements, Orsa allows the light to express a larger volume. A slim metal stem flares out at one end to form the heat-sink and housing for the LED, with a UV bonded cover that contains the light source. The design of the diffuser ensures that the light source remains invisible, making the pendant appear like a floating disk of light. The diffuser takes its shape from the focused output of the LED, which is diffused through a specially engineered etched lens that allows the light to focus over a wider area. The design team at Foster + Partners experimented with materials, surfaces, and optics to achieve the desired lighting effects and volume. The Orsa 21 is available in two configurations: 3 Pendants or 5 Pendants.