I have seen the preliminary data sheet as well. But, much of my knowledge about this diode has come from testing so many at different drive currents and measuring the center wavelength. I have had some in copper modules at 350 mA and the module gets hot in a matter of 20 seconds.
490.7nm at 80 mA
487.6nm at 110 mA
486.9nm at 100 mA
490.0nm at 95 mA
490.2nm at 100 mA
490.8nm at 130 mA.
It is beginning to look like the majority of these will be at or around 490nm to 491nm. There are some lower ones, but not as many as there are these slightly higher ones. I still have nine diodes left to test. Hopefully, this will be good news for many members here who are looking for something around 490nm. :yh:
There are some 488nm ones, but not as many as the slightly higher wavelengths. I was really expecting to see 492nm to 495nm, so no one was more surprised that I when they measured what they have, so far. I will have to get back to the rest after today. I am beat.