Amazon.com: Lights88 Laser Diode Module 360 Degree Laser Line Circle Laser Use 5mw Diode Module Line (635nm 5mw Red Line) : 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
New 80mW 450nm Blue Laser Diode PLT5450B 5.6mm TO-18 LD: 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
GeeBat 10pcs Mini Laser Dot Diode Module Head Red 650nm 6mm 5V 5mW Diode Lasers: Amazon.com: Industrial & Scientific