A Spreadsheet for Analyzing the In-Situ Performance of Fluorescent Luminaries

Publication Type

Conference Paper

Date Published


LBNL Report Number



A spreadsheet program for determining system efficacy, power input and light output of common 4 ft fluorescent lighting systems under realistic operating conditions is described. The program uses accepted IES engineering principles to precisely account for ballast factor, existing thermal conditions and maintenance practices. The spreadsheet, which includes a data base of lamp and ballast performance data, can be used to calculate the cost-effectiveness of many common lighting retrofits.

Conference Name

Illuminating Engineering Society Annual Conference 1991

Year of Publication


Conference Location

Montreal, Canada

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