“Modern Dictionary of Electronics” (Rudolf F. Graf; 1961) [Books Reviewed]
Harvey W. Mertz · Journal of the SMPTE · 1962
Newest light in the recently announced Quartz-King line, the 1000 produces more than 860 foot-candles of smooth even light at 10 feet!Utilizing the Sylvania "DXN" 1000-watt 3400OK quartz-iodine lamp, in a reflector of a brilliant new design, the Quartz-King 1000 produces a round pattern of light, perfectly smooth, without hot spots, without banding, and without filament pattern.Never before has so much usable light been available in a housing as compact and as light as the 10001The Quartz-King lo00 operates directly from standard 110/120 volt outlets.Intensity is maintained because the quartz-lamp will not discolor or dim during its entire life, and the reflector will never tarnish.