3.5W 5.5W Optical Power Laser Engraver|12V Laser Head|Adjustable Focus Laser Module with free shipping on AliExpress
YoraHome Diode Laser Module Kit
Amazon.com: AlgoLaser Laser Engraver Delta 22W Output, 500mm/s Speed Laser Cutter with 30L Laser Air Assist, 3.5" Touch Screen for Instant Image Engraving, DIY Laser Engraving Machine for Metal and Wood, Acrylic
CNC laser head 2.5W 3.5W 5.5W 7W blue laser module black high efficiency light transmittance DIY with TTL PWM free shipping - AliExpress
Amazon.com: Laser Engraving Machine 3.5w Laser Cutter 100cm x 100cm Big Area Laser Cutting Machine Wood Laser Machine TTL PMW grbl Controller (100cm 3.5w) : Arts, Crafts & Sewing
Amazon.com: Official LONGER RAY5 Laser Engraver, 20W Laser Engraving Machine with 3.5 inch Touch Screen, 120W DIY Laser Cutter for Custom Design, Laser Engraver for Wood and Metal, Acrylic, Leather, Glass, etc.
YoraHome Diode Laser Module Kit
445nm / 450nm 3.5W 3500mW Blue Laser Module With TTL DIY Lab Engraving Machine | eBay
The Endurance 3-3.5 (3000-3500 mw) blue diode laser head for 3D printer/CNC.
3.5W Industry Laser 445nm/447nm/450nm 3500mW Blue Laser Dot Module Diode NDB7A75 w/ TTL0-20kHz & Fan Cooling & Long Time Working: Amazon.com: Industrial & Scientific
2.5W/3.5W.5.5W 450nm 33mm Focusing Blue Laser Module Laser Engraving And Cutting