Dazor Manufacturing Corp. (St. Louis) manufactures task lighting and magnifier products used in commercial, professional, industrial, educational, medical and residential applications. Dazor's most popular line of task lights is the Classic series, featuring precision-balanced "floating-arm" technology, which allows positioning of the lamp's swing arm with a touch of the finger.

Originally, when manufacturing the six models that comprise the series, Dazor pressed together the socket swivel and the shade, which covers either two or three light tubes, using a conventional mechanical press and die. With this approach, however, it was impossible to maintain a consistent pressing force. Variations in the assemblies caused Dazor to miss its internal quality control standards. Faulty assemblies had to be either reworked or scrapped entirely, including the shade.