BX3" Burning Blue Laser Pointer 450nm 1000mW - 1500mW
450nm 1000mw 1W High Power Pure Blue Line Laser Module 110° w/12×45mm + Holder + Adapter: Amazon.com: Industrial & Scientific
Amazon.com: Laser Engraver Module, LASER TREE 20W Laser Engraving Cutting Module CNC, 4W Optical Output Power, Adjustable Focal, 450nm Laser Head for Laser Engraver Cutter Machine DIY Engrave Wood Paper Leather
High Power Blue Burning Laser Pointer. 1 Watt 450nm. | eBay
500mw Carving Blue Light 450nm Laser Module Head For Tronxy X5sa Series 3d Printer Kits Diy Laser Engraving Machine - 3d Printer Parts & Accessories - AliExpress
Amazon.com: OXlasers 4W 450nm Focusable Engraving Blue Laser Module for CNC 3018 3018pro with PWM (4W) : Industrial & Scientific
450nm Laser Diode, Blue Laser from OptLasers
450nm Blue Laser Pointer Visible Beam Light Torch Lazer Pen Light w/ Battery US | eBay
450nm 3W high power semiconductor laser with adjustable power supply