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Abstract
A pair of display boxes containing indentical objects displayed under six different lighting conditions were viewed by 134 individual observers. Each observer had to make a forced-choice pair comparison in response to six questions concerning different aspects of the lighted object. Relative rankings of the six lighting conditions are given. The direction from which the light source shines on the object is important with the most preferred to least preferred directions being front, top, and back, respectively. If two source locations are used, the sources should be located in as different directions as possible. Incandescent spot lights were preferred over fluorescent lights, and light intensity was only important for initially attracting attention. It also appears that display lighting is more effective for visually simple objects such as household applicances than for visually complicated objects such as much household furniture.