Amazon.com: Laser Module, LASER TREE 20W Optical Power Laser Engraving Module with Air Assist, Quad-Compression Spot, 80W Laser Head for Laser Engraver laser Cutter, DIY Engraving Wood & Metal, Better for Cutting
Amazon.com: Laser Engraver Module, LASER TREE 20W Laser Engraving Cutting Module CNC, 4W Optical Output Power, Adjustable Focal, 450nm Laser Head for Laser Engraver Cutter Machine DIY Engrave Wood Paper Leather