This machine has 1 UV Lamp with DMD optic. Lamp need to be change every 2000 hours and cost App.1500 euro The system runs on conventional plates which are cheaper than the CTP thermo plats and saves you a lot of money approx. 15.000 euro in a year depending on how many plates you are running. This model 57F is very stabile and doesn't need much maintenance. The DMD and lamp is in good condition