A nice 8.5w laser, pretty straightforward install on GRBL based machine.
Impossible to compare to Chinese laser, not a connsodering difference in laser beam qualità and real Power the lifespan of this laser Is way above “cheap” Chinese laser and I’m working with It even 8-12 h nonstop without trouble and Power oscillation.
With a price about 2x the same “hypothetical Power” Chinese laser, you have a machine that allows you to Plan a work Plan without the risk to found It dead near the deadline.
George and Endurance customer care Is also First class, we are still talking about an “open source” world where not all can Always go well with program and board development, but Endurance lasers offer a good price for value and again, a good support