What type of laser is it? Etcher Laser February 25, 2019 02:19 Updated Follow This machine carries a 445nm blue laser diode; Class 1 laser. We have 1.6W and 3.5W types. Related articles What type of cooling system does it have? What is the wattage? What is the laser’s life expectancy ? How does it work? What type of ventilation system does it have? Comments 0 comments Please sign in to leave a comment.