Samenvatting
Alternative light sources and proposals for conserving energy and reducing annual energy costs are detailed. Tabulated data on light source comparison of low pressure sodium and high pressure sodium lamps are appended.
Alternative light sources and proposals for conserving energy and reducing annual energy costs are detailed. Tabulated data on light source comparison of low pressure sodium and high pressure sodium lamps are appended.
Public Lighting, Vol. 40 (1975), No. 169 (June), p. 49-53, 5 tab.
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