A system can include a processor； memory accessible by the processor； a display； and processor-executable instructions stored in the memory and executable by the processor to render a graphical user interface to the display, where the graphical user interface includes a graphic of a machine where the machine includes a conveyor； a UV zone that includes LED-based UV radiation sources； a heating zone； and a controller that controls power to at least one of the LED-based UV radiation sources and where the graphical user interface includes a functional graphic that responsive to actuation renders a menu to the display where the menu includes menu items for the UV zone.
