http://www.wickedlasers.com/lasers/S3_Krypton_Series-113-63.html
Green laser, one watt. A mere $1000.
[youtube 5Tx02Up-ovw]
This thing would probably be *more* dangerous than a firearm, for the simple fact that people would likely be more willing to mess around with it like idiots. And the slightest reflection – off plastic, glass, metal, probably fricken’ *paper* – would likely be enough to dazzle someone, if not outright blind them.
Still, a one watt hand-held laser seems like it might be of some practical value. The claim is that it’s bright enough to dazzle the sensors of satellites in low Earth orbit; if this is in fact the case, you can expect that these lasers will sell like hotcakes to every government on the planet, and downward-looking satellites will start going “funny” in large numbers quite soon. Huzzah! There’s you market for new cheaper launch vehicles! Gang a dozen of these together on a finely-trainable turret with a really good telescopic sight, and mount to the payload compartment of your friendly neighborhood Xcor Lynx rocketplane, and you have an instant anti-spysat system. I wonder what these would do to solar panels…
A regular green laser is bright enough that as a sight on a gun, it is itself a dandy weapon. Play it over the face of a home invader, say, and the home invader is going to lose all interest in doing anything but getting out of the house. But with *this* thing, play it over the face of the badguy, and he’ll likely be not only permanently blinded, but maybe even *scarred* by the experience. Of course, once criminals figure that out expect to see these lasers used to do just that sort of thing. Terrorists and jackasses will have all kinds of fun with these and airplanes/cars…
Youtube has a number of videos showing people starting fires and popping balloons with green lasers less powerful than this. You might be able to hunt small varmints with this laser.