Features:  【Precision Scale Line Axis】: X-axis and Y-axis has precision scale lines, which is convenient for you to carry out quick length measurement. The 400x400mm large-area engraving interval can meet your various engraving needs. Widely used in metal(non-reflective or painted black), wood,plastic, paper, bamboo, leather, etc.  【Lightweight and Eye protection Design】: The laser engraver is equipped with a laser shielding sleeve to protect your eyes from injury,lightweight and convenient for assembly and disassembly.  【Intelligent Safety Protection System】: When the laser is in an abnormal state and continues to be irradiated, the laser will automatically stop to prevent fire; when the engraving machine is impacted by an external force, the laser will automatically stop to avoid danger (Customers can choose whether to use this function).  【Solid and Easy Installation Structure】: The full-metal structure design makes the machine more solid and durable, and improves the accuracy of engraving. The whole structure is designed for quick assembly, and the assembly can generally be completed within 15-20 minutes.  【Extensive Compatibility】: The machine can be compatible with various mature engraving software, such as LaserGRBL,LightBurn,Benbox and GrblController as well as systems Windows and MacOS.  【Ultra-Fine Laser】: Laser output optical power is 4.5-5.5W, the high-power engraving is faster and more accurate. The ultra-fine laser precision is reduced to ± 0.01 mm. The high-density laser can directly engrave smooth stainless steel metal and ceramics.  【Upgraded Fixed-Focus Laser】: Engraving can be done without adjusting the focus; The laser can combine both precision engraving and high-energy cutting at the same time. The laser power of the fixed-focus laser is more stable than the zoom laser.    Specifications:  Color: Black and blue  Plug: EU/US/UK/AU(optional)  Engraving Size: 400*400mm  Precision: ± 0.01 mm  Input Parameter: 100-240V AC,50/60HZ  Output Parameter: DC 12V,5A  Engraving Speed: 3000mm/min  Laser Wave Length: 455± 5nm  Laser Power: 50W  Laser Output Optical Power: 4.5-5.5W  Laser Life: 15000-20000H  Focusing Type: Fixed focus laser  Focus Adjustment Mode: Convenient Rotary Knob Focus Adjustment  Carving Material: Metal,ceramics, wood, bamboo, paper, plastic, leather, PCB board, aluminum oxide,non-reflective electroplated surface paint  Cutting Material: Cardboard, non-woven fabric, light wood, acrylic material, thin plastic board  Printing Software: LaserGRBL,LightBurn,Benbox,GrblController,LiteFire  Operating System: Windows / MacOS  File Format Supported: NC,BMP ,JPG,PNG,DXF,etc.  Data Transmission Mode: USB  Product Size: 616 * 577 * 212mm / 24.3 * 22.7 * 8.3in  Product Weight: 4.5kg / 9.9lbs  Package Size: 642 * 330 * 162 mm / 25.3 * 13.0 * 6.4in  Package Weight: 6518g / 229.