Nope, it's not LM301b.
Count the diodes and consider, LM301b is a 0.5w mid power diode.
This seems to be the Osram Duris E10, same diodes as in the latest BudMaster Growlights.
It's a 11.4w "multi-diode/mini COB", running at 38v / 300mA with up to 1800lm (datasheet).
Here they are a driven lower at ~ 100mA for 3-4w per diode and up to 180lm/w.
Between the whites are additional red, probably Osram Oslon horti's in 660nm.
Take a look at the close-ups on their website and compare them to the image in Osram's data sheet.
If it's not Osram it must be something very similar but I know nothing comparable so far.
BTW,
datasheet is in one of my other posts, if interested...
Would like to see strips using these diodes..