@whiteybulger1814 -- there is no diode created on earth that has this efficacy... even lm301 6500K tops out at 3.1umol/J. The bins available for 3000k and 3500k are even lower. The osram reds are much lower... cree makes a far better 660nm diode, so if these are ferraris, then they shoul dhave used the cree red diodes that top out at 2.9umol/J ... osram are low efficacy and cheaper parts. they only account for 4-5% of diodes, so it's not a major impact, luckily. Not something to worry too much about cause it'd take 20 years to make up cost difference in electricity savings for that context. the top-end cree 660nm diodes are 10x more expensive.
this is a red flag that they are lying or manipulating the math... they don't even calculate PPFD correctly on their products brouchure... lol.. that's not a good sign, either.
https://grow.ecogtech.com/wp-content/uploads/2022/05/Eco-Growtech-2022-Brochure-Digital-April-6-2022-compressed.pdf
i'd wager that are using PPFD to calculate the 3.2 umol/J values which is not how you do it... umol/s / watts = efficacy... not PPFD / watts. The latter allows you to make the umol/J be whatever you want by simply changing size of area of coverage.
i'm not calling you out.. it's just reality of the diodes that are manufactured on earth... if you got some alien tech, you can exceed 3.1umol/J.
This particular manufacturer may have great lights, but they are fibbing a bit.. if the diode count doesn't equare to 0.25w/diode, they are not top-tier lights no matter what their spec sheets promise. always take the base info and reference samsung.com spec sheet for the lm301 diodes.. you can see everything i say is fact on their spec sheets.
Any light that is legitimately a 3.1umol/J is probably too cool white / higher CCT than you want for flowering plants. With best cree 660nm diodes and top-bin lm301 diodes run at 0.25w/diode, you could maybe hit 3.0 ... maybe a bit over that. 3.2 is a blatant lie by the manufacturer, sadly. hopefully, that's the only corner they cut.