I sent one to George at Endurance Lasers for some testing. He posted some results.
and here: http://endurancelasers.com/exploring-more-powerful-laser-diodes-necsel-10-watt-520nm/
I haven't had much time to play around with them. I just picked up a badass power supply though so I should be...
I recently grabbed a few of these from Junktronix. I noticed right away that "SB103B281" is printed on the top of the can. The Chinese suppliers pics do not show this on any of the listings. Are they the same diodes???
...and then there's this: https://www.ebay.com/itm/BRAND-NEW-7W-NUBM47-A1-NUBM44-V2-LASER-DIODE-450nm-9mm-TO-5-7-WATT/401668045040
They've completely copied my listing, photos and description... I've reported it to ebay.
Just came across this: https://www.ebay.com/itm/NICHIA-NUBM08-Recapped-9mm-Blue-450nm-455nm-4-75W-Laser-Diode-Brand-New/312377925784
It's a brand new seller with 0 Feedback and a whole lotta other diodes....