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While I beg to differ with Mike's post regarding the legality of owning a 2 watt laser (or higher) I have had some experience with 1 watt, or class 4 laser, and I'd suggest you be *really* careful with such devices.
Class 4 devices can damage your retina even with diffuse reflections....and the damage will happen if you are not wearing safety goggles before you know it.
Unless you have a real need to use one, I'd suggest you look at a class II instead.
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