Air cooling design, no need to install complicated water-cooled pipes, the machine can cool down by blowing air on its own, and it is also very worry free; And a 30% conversion rate means that at least 3 kWh of electricity from 10 kWh can be converted into a working laser (ordinary machines may only have 10% -20%), without frequent shutdowns or cooling, which can save a lot of electricity costs over the long term.