3v/5v 650nm 5mw Adjustable Laser Dot Diode Module Red Sight Copper Head Mini Laser Pointer - Diodes - AliExpress
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
5mw 650nm Red Cross Line Laser Module | 5mw 650nm Red Laser Diode 5v - 6mm 650nm 5mw - Aliexpress