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Blue Dot 450nm 3500mW Focusable 3.5W Laser Diode Module Driver 12V w/ TTL Fan 958253081454 | eBay
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Eu Ship 0.5w/3.5w/7w/15w 445nm 450nm Focusable Blue Laser Module Laser Engraver Part Diy Laser Head With Pwm - Woodworking Machinery Parts - AliExpress
Amazon.com: OXLasers 3.5W 450nm Focusable Blue Laser Module for DIY CNC Engraving Cutting Machine with PWM for CNC 3018 (3.5W) : Arts, Crafts & Sewing
Amazon.com: OXLasers 3.5W 450nm Focusable Blue Laser Module for DIY CNC Engraving Cutting Machine with PWM for CNC 3018 (3.5W) : Arts, Crafts & Sewing
Nichia NDB7A75 445nm/448nm/450nm 3.5W 3500mW blue high power laser diode T05 9mm