Upward Light Ratio (ULR)

Dalis Medina
Upward Light Ratio (ULR) is the maximum permitted percentage of luminaire flux that goes directly into the sky, and this is the proportion of light that is emitted at or above the horizontal when a luminaire is mounted in its installed position.

To show the generated results, please open the result overview, and right click to display the properties box.  Under Overview, the ULR result can be added to your result overview page.