Model Rl40gu Communication interface usb2.0 Engraving area 260 x 320mm Laser power Less than or equal to 40w Engraving speed 500mm/s Engraving depth 1.2mm Cutting speed 50mm/s Cutting depth (acrylic) 0-8mm Up and down work table manual up and down 40mm adjustable Minimum shaping character 1 x 1mm Resolution ratio 0.0254mm (1000dpi) Power supply 220v(or110v)+/-10% 50hz Resetting positioning Accuracy less than or equal to 0.01mm Gross power 300w Operating temperature 0-45c Operating humidity 35-70 celsius system Graphic format supported Plt/dxf/bmp/jpg/gif/pgn/tif Operation system Windows98/me/2000/xp/vista Engraver for curve surfaces(yes/no) no Engrave for slope Yes Water cooling(yes/no) Yes Maximum height of materials to engrave(mm) 120mm. Laser tube(life hours) 1000-1200 hours Equipment dimensions 81x51x26.5cm / 31.9 x20.1 x10.4 in. Shipping weight 40kg (carton) 55kg (plywood box) Shipping dimensions 95x67x42cm 104 x89 x54cm