Focusable 980nm Infrared IR Adjusted Laser Dot Diode Module 3V-5V with TTL 0-15KHz 12x30mm: Amazon.com: Industrial & Scientific
Laser Diode 650nm 6mm 3V 5mW Adjustable Laser Dot Diode Module Red Copper Head 3v
farhop 6mm Laser Mount Holder PLA for 3V 5V Laser Diode Modules – farhop
650nm 660nm Adjusted Red Laser Line Dot Cross Laser Diode Module 3V-5.5V 100mW Laser Dot/Line/Cross Module Focusable 13mmx42mm with US Power Adapter and Heatsink: Amazon.com: Industrial & Scientific
10PCS Adjustable Mini Laser Pointer Diode RED Dot Laser Diod Circuit 3V/5V 5mW 650nm Module
9mm 650nm 5mw Red Line Laser Head 3v 5v Laser Diode Semiconductor Laser Tube 3v-5v - Laser Levels - AliExpress