I just bought a 450nm blue laser pointer off of ebay for $80 a couple months ago the listing on the website including the warning label say's the laser pointer is only 5 mW I was just wondering because I have a green laser pointer at home that's only 5 mW and the blue one I got online seems to be more brighter and a lot more powerful i'm new to laser pointers so I pretty much have no idea here is a video of my laser pointer https://www.youtube.com/watch?v=GwMnKlqh0q8