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
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Laser Diode LD driver board w/ TTL modulation current 1A 2A DC 12V voltage current adjustable 405nm 445nm 450nm|Instrument Parts & Accessories| - AliExpress
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Laser Diode LD driver board w/ TTL modulation current 1A 2A DC 12V voltage current adjustable 405nm 445nm 450nm|Instrument Parts & Accessories| - AliExpress