ReluxDesktop | Exterior Lighting Planning
Upward Light Ratio (ULR)
Upward Light Ratio (ULR) is the maximum permitted percentage of luminaire flux that goes directly into the sky. See here where to activate this in results.
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.
![](https://live-erp.relux.com/web/image/505851/ULR (1).png?access_token=38149555-4263-4186-9327-40c6393bb60b)
Video Resources
Realtime Rendering - Screen Capture
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