Well, holy shit. I'm having an epiphany.
I used to consistently pull a gpw when I had my flood trays with covered tops.
I also pulled 2 lbs in the tent with the flood buckets and suspended net pots. There was lots of reflection.
When I was testing a new bulb tonight to see what Temps will be in the flower room with another light, and to adjust the hood height, I used the light meter on the covered tray.
To my astonishment, at 4 fucking feet!!!! I'm getting the same reading as 22" on all the other lights without a reflective surface.
This is huge and could be a major reason I was always pulling so much weight. At 24" it would be equivalent to 2000w in a 4x4 area.
Now to back track some years, my rooms were always built with the reflective insulation board. And I used that board to cover my trays, each tray being 3.5x3.5'.
I must have been getting 2500w equivalent in that space with all surfaces reflective!
Crazy! Something to think about.
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Oh, and the atomic nl I pulled lol. Such a trooper.
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