LED Lighting - Intensity vs Duration/clarity

[Clawhammer]

Hello smart people... I've really only grown orchids under LED light panels and have had great results. I've never had a burn and have had success with reflowering most plants that I have attempted.

I use these lights and use a light meter to measure FC.
Robot Check

My catts get 2000-3000 fc under these lights, less than what is listed that they require, yet all new growth is highly pigmented, which in my understanding means they are receiving more than adequate lighting. I've rebloomed most of the catts under these lights.

Finally my question: How do we think about duration and clarity alongside FC? My plants under LEDs never get shaded, never experience a cloudy day, never get burnt despite being exposed to direct light for however long I wish them to be. How much does this compensate for the intensity not being the same as an hour of direct sun in the morning?