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So, Osram recently released a new 3737 Red diode which is 11% more efficient than previous generation. Another thing worth mentioning is that the peak wavelengths are shifted from 646nm-666nm from previous generation to 665nm-680nm. So more towards the 700nm mark. I'm not sure the difference...

I notice that both Samsung and Osram are now offering white diodes with CRI 70. The Osrams came out not long ago and are described 'to increase horticulture efficiency' which is 237lm/w. Not sure what Samsungs are at CRI 70, but they are definitely more efficient than the 80's? I was under the...