Longer B1 40W Laser Engraving Machine 20W and the engraving is clear

and the engraving is clear

or remove the goggles

32 inches) Laser Wavelength 450nm 450nm 450nm Supported Software LaserGRBL(Free)

height of the front: 140mm

Longer B1 40W Laser Engraving Machine 20W and the engraving is clearSpecification: Specification Model Longer B1 20W Logger B1 30W Longer B1 40W Optical Output Power 20W 30W 40W Maximum Working Speed 36,000 mm min 36,000 mm min 36,000 mm min Rated Power 105W 145W 175W Maximum Cutting Capacity 25mm Pinewood, 35mm Acrylic, 0. 05mm Stainless Steel 25mm Plywood, 50mm Acrylic, 0. 1mm Stainless Steel 40mm Plywood, 50mm Acrylic, 0. 15mm Stainless Steel One Pass Cutting 12mm Plywood, 15mm Pinewood, 8mm Acrylic 20mm Plywood,