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    Question about 532nm laser

    I found this at lazerer.com http://lazerer.com/lztn-tiny-532nm-100mw-smallest-green-laser-pointer-key-chain it's a 100mw 532nm that doesn't focus and uses a 10400 battery. It is super compact and can even be hooked to your keys. Even though people that have this say it's a great product, it...