The laser module on the Cenoz machine was terrible… never focused to a nice spot and had sorry power. I had several other laser modules on hand… common 3-pin versions for +12V, GND, and PWM. If you use the included laser module’s wiring to identify those 3 wires – and the black wires they hook to – you can then mark the black wires and and install a new laser module on there. That what I did here…