Amazon: ATOMSTACK M40 Laser Module, 5.5W Optical …
ATOMSTACK A5 Pro Laser Engraver, 40W Laser Engraving Cutting Machine for Wood, 5W-5.5W Output Power, Compressed Spot CNC Carving DIY Laser Master, Eye Protection Fixed-Focus, 400x410mm 4.1 out of 5 stars 195