445nm 450nm Blue Laser Diode Driver Board LD Power Circuit 200mw-800mw 12V | eBay
5A High Current NDB7A75 3.5-4.5W 445nm Blue Laser Driver 12V Step-Down Constant Current Drive Circuit w/TTL: Amazon.com: Industrial & Scientific
445nm Blue Laser Diode Module ( 4 WATTS OUTPUT )
4W Industry Laser 445nm/447nm/450nm 4000mW Blue Laser Dot Module Diode NDB7A75 w/ TTL0-20kHz & Fan Cooling & Long Time Working: Amazon.com: Industrial & Scientific
445nm Blue Laser Diode Module (NICHIA NDB4116 SOURCE LASER)