Lol you seem annoyed for some reason.
First off I'm fully in support of LEDs, and pushing grow tech into the future.
Secondly I'd have to dig for them (which I'm not doing on my phone) but I've read several papers about the suns light intensity over the years. I had a chart at one point that was measured in New Zealand. The sun reached nearly 2k ppfd but that was at its peak it averaged closer to 1500.
Obviously like you point out above dialing in our grows is the goal that gives the greatest final results.
What intensity levels do you run at?
My point was only that the sun is our bench mark for lighting. If the other limiting factors like temp and CO2 are in check then there is no reason we can't push for high ppfd. Plants grow outdoors with full sun intensity really well ever day all over the world
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No there aren't many places with a 60+ dli outdoors. I didn't say there was... I simply stated some average numbers based on data gathered in a test. It would seem that 40-50 is the average DLI during the growing season in the majority of the US. Which still puts us between 900-1100ish ppfd.
I really think it would awesome to create a timed dimmer so we could really replicate a day night cycle indoors. I think it would be awesome to start the plants day at a low level and ramp it up to peak levels and then. Taper it back down to night time. But that would be unnecessarily complicated I think.
So any way don't be mad at me because I suggested that we should all aim for the sun! I'm not here to fight or argue. I'm not discussing light types.
Hell this whole thread was originally about the importance of spectrum vs intensity. Would you like to weigh in on the OP?