Features(Manufacturer refurbished): 
Newly upgraded ultra-fine compression laser: The laser adopts 4-fold lens group collimation and focus technology, the optical power is 5.5W-6W, 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-6W 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: 5.5-6W
Wave Length: 455 ± 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, 3A
Machine Weight: 3.5kg/ 7.7lbs
Machine Size: 57*60*27cm/ 22*23.6*10.6in
Package Weight: 5667g.12.5lb
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