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445nm 520nm 1.6W Laser Diode Drive Driver Board PCB 6-14V Voltage Input: Amazon.com: Tools & Home Improvement
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
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
5V Power Supply Driver Board for 445nm 447nm 450nm 3.5w Blue Laser Diode Module Circuit Board: Amazon.com: Industrial & Scientific