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450nm Blue Laser Pointer Visible Beam Light Torch Lazer Pen Light w/ Battery US | eBay
2 Colors Laser Pointer 450nm 100mW Blue & Green Outdoor : High Power Burning Laser Pointers,DPSS Laser Diode LD Modules, Kinds of laser products
450nm, 50mW, PM Fiber Coupled Laser Diode
Amazon.com: LASER TREE 40W(5W Output Optical Power) Laser Engraving Module, 450nm Laser Head for CNC Laser Engraver/Laser Cutter Machine, DIY Laser Engraving Tool Suitable for Wood Metal Acrylic Paper Etc
450nm 100mW Laser Module With TTL Modulation Dot/Line/Cross Focus Adjustable