650nm 5mw 5v Red Point / Line / Cross Laser Diode Module Head Glass Lens Focusable Focus Adjustable Industrial Class - Integrated Circuits - AliExpress
HiLetgo 5V 650nm 5mW Red Dot Diode Laser Review and Code – The Chewett blog
532nm 20mw laser diode module green line laser 3V - 5V