Energy Conservation Through More Efficient Lighting

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Science  26 Oct 1984:
Vol. 226, Issue 4673, pp. 435-436
DOI: 10.1126/science.226.4673.435


The efficiency of a mercury-rare gas electrical discharge, which forms the basis of a fluorescent lamp, can be increased about 5 percent simply by increasing the concentration of mercury-196 from 0.146 percent (natural) to about 3 percent. These findings can be implemented immediately without any significant change in the process of manufacturing of this widely used source of illumination, provided that mercury-196 can be obtained economically. The potential energy savings for the United States are estimated to be worth in excess of $200 million per year.