A few months ago we had a request for a custom annunciator panel that was to be based around the standard King Air Glareshield Annunciators that we sell. The basic aspect of the panel is determined by the footprint of the LED circuit board, although we altered the shape of the unit to suit our customer's need. We also removed the dimming potentiometer from the left-hand side of the panel.
Each annunciator is a completely separate piece and can be easily removed from the rear of panel and replaced with a new/different legend at a later stage if required.
As a comparison, below is a photo of our standard King Air Glareshield Annunciator Panel, with the LEDs powered.
Four different LED colours were used in the custom panel (red, yellow, blue, and cool white), and although it's not shown very well in the photos below, the blue was actually a nice deep colour and not quite as 'washed out' as it appears here.
Prior to manufacturing the actual panel, we also provided several previews of what it would eventually look like. This allowed us to alter a couple of details, such as the wording of FUEL CROSSFEED, which was changed to the more aesthetically-pleasing FUEL X FEED.
These previews also allowed us to show how the panel could be mounted, and we could also provide the exact dimensions of the cut-out required and the placement of the mounting holes.