The acronym, “BUG” (Backlight, Uplight, and Glare) was developed to calculate the light escaping in unwanted directions from an outdoor light fixture.
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The acronym, “BUG” (Backlight, Uplight, and Glare) was developed to calculate the light escaping in unwanted directions from an outdoor light fixture.
The BUG system is a tool to evaluate the light output of outdoor lights designed to replace the original “cutoff” system that applied solely to street lighting.