Designer Rob Zinn moves lighting into the future with his Concentric and Expansion XL series. While not in use, the vivid underside of these concentric steel panels remains a bold secret, radiating only a subtle hint of color. When turned on, the light source illuminates the concealed colors, reflecting the hue of each preceding panel. A very simple idea, really, with dramatic results. Aluminum, steel and brass construction make up the bones of this lighting, and they can be either ceiling- or wall-mounted. To fit with your color scheme, they are available in warm or cool palettes, as well as single yellow or blue tones.