Amazon.com: F-Yi 405nm Blue Purple Laser Engraving Machine Parts with TTL for DIY 3D Printer & Industrial : Arts, Crafts & Sewing
oxlasers 405nm 500mW Blue Violet Laser Module for 3D Printer 12V Focusable DIY UV Laser Head for Engraving and Cut with TTL PWM|3D Printer Parts & Accessories| - AliExpress