Need Assistance With LB Surface Ray Tracing Node

Hello, will anyone be able to explain to me how the LB Surface Ray Tracing Node works? I am trying to create a sun based analysis on a specific geometry and want to use this node to help me, but whenever I try, it looks a little wrong. Can anybody help me understand what each plug means? Thanks

Hi Stella -

I’m sure someone on the LB forum knows more about this → https://discourse.ladybug.tools/
-wim