5V-8V Power Supply Driver Board for 445nm 447nm 450nm 500mw-1000mw Blue Laser Diode Module Step-Down Circuit Board: Amazon.com: Industrial & Scientific
Laser Diode Driver Based on LT1121 Voltage Regulator – schematic and PCB
Precision Laser Driver Circuit ( 1 AMP PCB )
Laser Driver Circuit Board Small Size 6mm*6.5mm 635nm To 980nm Laser Diode Driver Apc Working Mode 2.8v To 5v Voltage Supply - Instrument Parts & Accessories - AliExpress