- Jun 6, 2014
I have always wondered how visible other people see 405nm. I seam to be able to see it very very well because I can see the beam of a 45mw 405nm laser and with night adaped eyes I can see a 100mw 405nm laser beam very well even from the side. To my eyes a 100mw 405nm laser has a more visible beam compared to a 220mw 650 nm but the dot on the 650nm laser is brigher. I use to have a 1w 405nm laser and the beam was super visible outside at night. But some people can't see 405nm that well. Some can't see the beam very well even at powers over 1w from the side.