Features:   Newly upgraded ultra-fine laser: The laser adopts 4-fold lens group collimation and focus technology, the optical power is 5.5W, and the laser focus area is reduced to 0.02mm². The high-density laser can easily cut 15mm thick wooden boards, 12mm black acrylic; can directly engrave mirror stainless steel metal and ceramics.  Powerful Engraving Performance: The real 5.5W laser can easily cut through 15mm thick wood and 12mm acrylic, and engraver large areas of metal and wood. The metal engraving speed boost 200% and the engraving effects obviously improved.  Modular Design: Easy to replace or upgrade the parts and achieve more functions. Spiral button is more convenient for height adjustment.    Specifications:  Model: ATOMSTACK A5 PRO Upgrade  Working Area: 410*400mm  Support Carving Objects: Wood, bamboo, cardboard, plastic, leather, PCB board, aluminum oxide, non-reflective electroplating layer and paint surface layer metal, 304 mirror stainless steel, glass, ceramics, cotton cloth, slate;  Support Cutting Objects: Cardboard, non-woven fabric, wood board, acrylic, some thin plastic board, sponge;  Machine Working Power: 40W  Laser Output Power: 5-5.5W  Wave Length: 445 ± 5nm  Engraving Accuracy: 0.01mm  Focusing Method: Fixed focus laser, no need to focus  Laser Protective Cover: Panoramic filter glass  Operating Software: LaserGRBL, LightBurn, support Win XP / Win 7 / Win 8 / XP / Win 10 / Win 11 system.  Input Format: NC, BMP, JPG, PNG, DXF, etc.  Data Transmission Method: USB connection.  Input Voltage: AC100-240V, 50/60Hz  Output Voltage: DC12V, 5A  Machine Weight: 3.5kg/ 7.7lbs  Machine Size: 57*60*27cm/ 22*23.6*10.6in  Package Weight: 5623g/12.4lbs  Package Size: 59.5*35*13cm/ 23*13.8*5.1in    Note:  - When operating the laser engraving machine, please install the laser protective cover. If it is not installed, you need to wear goggles.  - Please do not touch the laser emitter with your hand, or it may burn your hand.  - Please avoid strong impact on the machine.  - Children under 14 are not allowed to use this product and children over 14 need adult supervision.  - The light engraving machine can not be directly applied to any mirror reflecting object, which may cause injury to the operator or burn the laser.    Packing List:  1* Machine Kit  1 * Control Box  1 * Goggles  1 * Power Supply  1 * USB Cable