Engraving Machine Accessories - laser engraving module, 3 contour modes, degrees of gray, black and white, built-in air filter with cotton insert, semiconductor laser diode with a lifetime of up to 10,000 hours surface with protection against deformation, for engraving cardboard, wood, bamboo, rubber, leather, fabrics, acrylic, plastic, etc., DC 24 V power supply, optical power 1.6 W, FDA Class 4 safety class, compatibility with different devices, developed for the Ender-3 S1 3D printer, dimensions 53 × 72 × 102 mm