Compatibility Design: The upgrade kit has been designed to maintain a certain compatibility, it can also be upgraded to the SCULPFUN S9 laser engraver. All the accessories are included in the package. Enhanced Laser: The S9 laser machine upgrade kit adopts a single enhanced 6W diode, which makes its actual laser power and cutting ability higher. Compared with S9 laser engraver(5.5W cuts 3mm balsa wood and 3mm plywood in one pass time), S9 upgrade kit 22W can cut 20mm balsa wood and 15mm plywood in one pass time. High-speed Air Assist Pump: Significantly improve the cutting penetration and cutting efficiency with faster cutting speed and cleaner cutting surfaces. The high-speed airflow of 13.5m/s with high-pressure air-assist nozzle makes it can cut plywood and MDF panels more than 5 times faster, and cutting surfaces are cleaner and no smoky. Shop Now and Save 25% OFF SCULPFUN 22W Laser Module Kit with 32-bit Motherboard High-speed Air Assist Pump and XY Limit Switch Direct Use for S9, Now 369.00€.