Sony Quality 405nm 20MW 5.6mm Blue Violet Laser Diode (SLD3134VF) - China Laser Diode 405nm 20MW, 20MW 5.6mm Laser Diode | Made-in-China.com
Low Power Laser Semiconductor To18/diameter 5.6mm 405nm 20mw Blue Violet Laser Diode Medical Devices Accessories Laser Head - Instrument Parts & Accessories - AliExpress