Yes, 532nm is correct, sorry, should have specifically stated that. Thank you for verifying the Vf value. I was thinking that was the correct value, and the actual laser head is probably OK.
As to a new unit for $20. That was just kind-of an attempt at humor. I could get a 30mW diode/driver...
I have a 50mw aixiz laser unit that is a couple of years old that only had a dozen or so hours on it that has stopped working after being stored for a few months. I don't know if it is the driver or the laser diode that has died. I hooked a dummy load up to the driver and the DMM readings per...