Hi, i'm new to this forum, and kinda new to the raspberry, so bear with me. For a school project i want to use a visible laser light. not a 5 mw deal which only shows a dot. I was thinking about buying one with 100 mw from dx (http://www.dx.com/p/100mw-532nm-green-laser-module-3v-11-9mm-26890). Do i...