I am on this forum for first time
Yea, my mistake. I was thinking only about safety so I forgot that beams will not be visible with glasses :D Thanks for your reply.
Hello, I am planning to build laser harp and I am going to buy green laser module. I found cheap DX 50mw. Does anyone have experience with visibility of beam at slightly lit room? (light only from window while sunset and PC monitor). Or you recommend with more power?
My second question is about...