“Hi Test” (1997) is part of the new Magnetron Series that take the aperture concept in a different direction. In these works the light source is a television set with varying programming. Hi-Test, the first Magnetron work, is permanently installed at the Mondrian, a hotel in West Hollywood, CA. On each floor of the Mondrian in the elevator lobby is a small aperture work. The openings are the size and shape of a standard television screen, and the light in the small sensing spaces beyond is created by a television placed on the floor inside the space, just below the aperture. On each floor the television is tuned to a different channel, and the viewer soon discovers that each network broadcasts its own unique range of colors.” – James Turrell in The Other Horizon