Quarton Red Dot Tiny Laser Module VLM-650-21 LPT (Mini-Size: Dimensions- D4 x 15 mm, Plastic Lens): Amazon.com: Industrial & Scientific
Amazon.com: 650nm Laser Diode Red Laser Tube for DIY Laser Module (4pcs) : Industrial & Scientific
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
Original SLD3232VF 405nm 50nm Violet Blue Laser Diode LD TO-18 5.6MM: Amazon.com: Industrial & Scientific
New High Power 850nm 1000mw 1W IR Infrared Laser Diode 5.6mm: Amazon.com: Industrial & Scientific
WOWOONE Laser Diode, 30pcs Mini Red Laser Diode Laser, 5V 650nm 5mW, Red Dot Laser Head, with Leads Head Outer Diameter 6mm: Amazon.com: Industrial & Scientific