3w Laser Module Laser Head 450nm Blue Lase For Laser Engraving Machine Wood Marking Cutting Tool Engraving Head - Woodworking Machinery Parts - AliExpress
3000mW (3W) – Laser pointer uk shop
450nm 3W High Power Fiber Coupled Laser SMA905 Manufacturers and Suppliers - Box Optronics
450nm 3W high power semiconductor laser with adjustable power supply