- Jan 13, 2010
I had a 400mw 405. I was able to light fireworks with it no problem! I had no trouble finding the focus either. Once you focus it and light a few fireworks you get a good feel where the focus is and you really don't have trouble finding it again. A 405 laser is a great starter laser. PLUS you can do all sorts of neet things with 405 that you can't do with other colors. Like make peanut butter glow in the dark or write on a glow board!