AtomStack A5 Pro Laser Engraver 5W Laser Engraving Cutting Machine for Wood Metal 410x400mmSpecifications: Product model AtomStack A5 PRO 40W Engraving size 410*400mm Engraving materials wood bamboo cardboard plastic leather PCB board aluminum oxide non reflective electroplated layer and painted layer metal blackened utility knife Cutting material cardboard non woven fabric thin wood chips black acrylic some thin plastic boards Laser electric power 40W Laser output optical power 5 5. 5W Laser wavelength 4555nm Engraving accuracy 0. 01mm