Introduction
Red lasers at 650 nm are quite common as components or breakout boards (modules). Actually pinning down which laser it is, is not so easy. I have different versions, and I am not sure if they are 3 or 5 v, or 1 or 5 mW. They do differ slightly is diameter and also in the focus of the beam. So I think they are different.
KY-008 Arduino Laser Module
I got a KY-008 Arduino Laser Module as part of a kit with 40 modules.
