5.5w 450nm Blue Laser Module Laser Engraving And Cutting Focusing TTL Module - Hardware Development - V1 Engineering Forum
5A High Current NDB7A75 3.5-4.5W 445nm Blue Laser Driver 12V Step-Down Constant Current Drive Circuit w/TTL : High Power Burning Laser Pointers,DPSS Laser Diode LD Modules, Kinds of laser products