The lighting of office buildings and drafting rooms / information compiled by A.L. Powell. (1920)
General Electric Company, Edison Lamp Works · General Electric Co., Edison Lamp Works · leaf 12
hould have from 2 to 4outlets, depending on its size. Wattage Required Modern practice for large clerical offices supplies the followingapproximate watts per square foot: Direct lighting with efficient dense opal or prismatic reflectorsand bowl frosted or bowl enameled Mazda C lamps, 1.25 to… … Sanitation is Improved with High Intensity Illumination. 60-watt bowl frosted EdisonMazda lamps in deep bowl, dense, opal reflectors provideadequate lighting in this toilet Semi-indirect, dense, opal or mirrored glass totally indirect unitswith clear Mazda C lamps, 1.5 to 3 watts per square foot.…
Lighting · Light bulbs · Light fixtures
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