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Old February 27, 2013, 09:47 PM   #22
TXAZ
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Join Date: September 5, 2010
Posts: 1,506
Lasers are regulated in the US at the federal level by the FDA's radiological health program.
For a decent Railgun capable of firing a second shot, a long extension cord, a serious generator or nearby mains power supply is required.

Also depends on what you want to do:

If you want to blind prey, a few watt Laser diode device suffices in a hand held, battery powered device.

If you wan to take off the leg of a charging coyote in a few seconds, you will need many hundreds of watts. (assuming you could stay on target) This could be an expensive handheld device but would require a "Sears Diehard" on your back.

If on the other hand you just want to stop a grizzly a km away coming at you, google Rheinmetall's 50kw laser. it blasted a 1/2" steel plate 1 km away.
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