Actually, Old Hooker, there are also 2 smaller slime lights on the aft pylon as well, just behind the upper anti-collision light. I’m not sure if this started with the D models, but that’s the only model I've ever worked on.
Depending on the aircraft, the color will vary when the lights are not on. On the -47, the lights are a very off-white, or a very pale light green. I’ve also seen lights that are tan when not on, like unpainted fiberglass. I’ve used radome tan for these lights. What particular aircraft are you building?
Chris "Middle Age Hooker" Ishmael