Blue Laser Diodes
Blue laser diodes have a wild range of wavelengths, such as 445nm, 450nm, 487nm and 488nm. 488 nm laser diode has sky blue laser beam.
Nichia Laser Diodes
Some of the Nichia Laser Diodes are easily to get , just search the module number # by google or amazon(such as ndb7a75 , the ndb7a75 or NDB7a75, when the…