GeeBat 10pcs Mini Laser Dot Diode Module Head Red 650nm 6mm 5V 5mW Diode Lasers: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm : Industrial & Scientific
TTL Laser Diode - 5mW 650nm Red - 50KHz Max
650nm 5mw 5v Red Point / Line / Cross Laser Diode Module Head Glass Lens Focusable Focus Adjustable Industrial Class - Integrated Circuits - AliExpress