2017 top powerful focusable 3000mW blue laser pointer real power review

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3000mW laser diode for this powerful blue laser pointer.After lens filtration loss, Let's measure the laser pointer's actual power. If you need a real powerful blue laser, and cheap enough, this is your best choice.
http://www.laserpointerreview.com/2017-top-powerful-focusable-3000mw-blue-laser-pointer-real-power-review-10615

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