This was the final prototype power input box before we were satisfied and made a production run. The finished units are cleaned up and screen printed. It may seem like a trivial part but the design is such that ALL mains is inside this box so that there is no mains voltage anywhere in the machine. The service socket is a universal type that will take any plug including an Australian standard 3 pin plug and is switched separately. Both the mains and neutral are switched. Naturally the mains on/off switch is under the front right, exactly where it should be!!!