Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 556
E.C.), from whom fuller particulars canbe obtained. The industrial indirecttypes are made in two styles, givingrespectively diffused and concentratingJight effects, and in three sizes for the■60 watt, 100 watt, and 200 watt MazdaJamp. The bowls are made of metal, and while diffusing the lamp from…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
