My experiment with Daylight 6500K LED tubes has ended. For whatever reason, my plants just don't do as well as with Fluorescents. My small square fixture with the Red & Blue LED's did just fine. So I swapped out a garage 4ft. Fluorescent fixture for one with the LED tubes. Back for now to what has worked for a long time!
I also noticed that Amazon has just about stopped carrying 4ft. T8 fluorescent tubes. But I suspect that breakage during shipping played a role in that decision.
-GG
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