Burning Purple Laser Pointer 405nm Hand Held Violet Laser 1000mW "PX"
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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
Focusable 405nm 100mw Violet Blue Line Beam Laser Diode LED Module 13x42mm | eBay
Sony 405nm 20mw~300mw Blue Violet Laser module Dot/Line/Cross focus adjustable / reticle