3pcs New 650nm 660nm-130CW 350 ML101F27 LD Push Red Laser Diode: Amazon.com: 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
Focusable 650nm 5mw Red Line Laser diode Module Focus Adjustable laser Head Light Pack of 10: 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