1. A refrigeration unit comprising: a housing partly defining an interior compartment, the housing presenting an opening allowing access to the interior compartment; a door corresponding to the opening and operable in a closed position to close the opening and in an open position to allow access through the opening to the interior compartment; a power supply connection connectable to a power source and operable when so connected to deliver power to the refrigeration unit; at least one fuse operable to electrically disconnect at least a portion of the refrigeration unit from the power source; a cooling system operable to cool the interior compartment to a desired temperature; and a vacuum fluorescent iconographic display operable to communicate information related to at least one operating condition of the refrigeration unit, the vacuum fluorescent iconographic display comprising a face presenting at least one iconic element visually identifiable as representing the operating condition, the iconic element being operable to illuminate in response to an electrical illumination signal, and electronic circuitry operable to generate the electrical illumination signal and to control and coordinate the illumination of each iconic element.