Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 66
Fig. 10.—Consumption l2S waits per square foot. Illumination 10—12 ft.-candles. … Fin. 11.—Consumption 075 watts per square fool. Jllumination 7 ) fi.-candies. Lighting of a Clothing Factory with Half-watt Lamps. be THE ILLUMINATING ENGINEER (feb. 1916) nianncr, naiiuly, by the use of very smalllaiiii)s. mounted close to the needle of themachine, so as to constitute a variety of…
Lighting
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