Motion Picture Daily (Jan-Mar 1942)

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HIGHEST EFFICIENCY IN SCREEN LIGHT PRODUCTION IS OBTAINED WITH THE ONE KILOWATT HIGH INTENSITY ARC • The phenomenal progress in efficiency of projection lighting is shown in the accompanying chart. For each watt of power purchased the modern "One Kilowatt" high intensity arcs deliver approximately 30 times as many screen lumens as the old condenser type low intensity arcs and from 2 to 3 times as many screen lumens as the later reflector type low intensity arcs. The THE NEW "ONE KILOWATT" ARCS USE "NATIONAL," "SUPREX" AND "OROTIP" CARBONS remarkable increase in efficiency of these modern high intensity arcs enables the owners of small theatres to offer their patrons the highest standard of projection in the industry. Installation and operating costs are low. If you are using low intensity projection it will pay you to ascertain what the new "One Kilowatt" arcs can do for you. Ask your dealer for a demonstration . The words "National,"" "Su/jrec," and "Orntip" are trade-marks of National Carbon Company, Inc. Carbon Sales Division, Cleveland, Ohio NATIONAL CARBON COMPANY, INC. eENERAL OFF(CES Unit of Union Carbide and Carbon Corporation 30 East 42nd Street, New York, N. Y. (fjjra BRANCH SALES OFFICES New York, Pittsburgh, Chicago, St. Louis, San Francisco