Circuit Power Supply Driver Board PCB 6-14v Voltage Input for 445nm 520nm 3W Laser Diode LD Module: Amazon.com: Industrial & Scientific
Universal PCB Board Holder Fixture with 6 Magnetic Pins Circuit Board Soldering Platform,Metal PCB Clamp with A Magnet,Suitable for Boards of 0.2‑1.8m Thickness - - Amazon.com