thought best to add some pics of proto 1 of the stern apron light bar, which has 2 of my 7 colour select RGB boards allowing you to mix up the colours on your playfield (red, green, blue, yellow, cyan, magenta and white), this one is available for purchase for $30 if anyone is interested otherwise off to ebay. The shot with the light only is in the garage totally black and the camera has changed the white light to a blue / purple.

The spotlight bar comes with screw for the front cover and in the back for fastening as well as 2 boards wired up and the way they are designed it doesn't matter about the polarity when hooking up to a 6.3vdc source. you could hook it up to a feature or run all the time and even have each side shining different colours.