I have LED lights on my machine that cannot be easily accessed to change, so it would have to go to the shop if they burned out. But....the LED lights, in theory, should last much longer than the life expectancy of the machine. Once I turn my machine on and program it, it stays on until I am either done with the project, or done for the day. I leave it on even when I take a break to eat, clean house, watch something on tv etc etc.