Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 195
, forexample, decide correctly the class towhich his installation belongs, and hemust also make certain decisions asregards spacing. Altogether the scheme is an ingeniousone. There is, however, one additionwe should like to see, namely, someindication to the consumer of theresultant illumination… … Typical 15° angle Mazdalux reflector ;this type is designed both for half-wattand ordinary lamps.
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
