This video is from CivilLaser, we test three kinds of red dpss laser: 671nm 600mw / 655nm 1.4W /635nm 600mW.
671nm laser: https://www.civillaser.com/index.php?main_page=index&cPath=42_48
655nm laser: https://www.civillaser.com/index.php?main_page=index&cPath=43_103
635nm laser: https://www.civillaser.com/index.php?main_page=index&cPath=43_59
