Re: >5mw vs 30mw
It will be MUCH brighter - depending on the laser, of course...as long as it puts out a true 30mw, you can expect it to be a minimum of twice as bright !
For the laser to appear twice as bright - it has to be 4 times as powerful as the other laser...
So, if I am doing the math correct, it would appear roughly 2.5 times as bright as the 5mw one !