Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 107
the special provision forventilation—an important considerationin units of this class. It is expected thatthe Holophane Daylight Unit will proveuseful for the many processes wherecorrect appearance of colours is desired,e.g., to those concerned with the manu-facture and handling of coloured goodsof… … um/ntzim is of importance. The Holophane re-flector employed has been selected witha special view to good downward light-distribution. Three sizes of units, adapted respec-tively for use with 100 watt, 150—200watt, and 300—500 watt gasfilled lamps,are available, but in view of the relativelylow…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
