All though it is not scale , but always collecting LED lights or flashlights , thought why not use these lights for a test and see what they look like flying at dusk , maybe they will one day fit into a scale  project . Photos are at 

https://goo.gl/photos/N9awzz6wVnRkiUhw7

  at the end of the other photos. Found these flashlights at a surplus store whole package and two where black perfect for my use . The whole set up and  mounting pod  is 2.5 oz per wing. They have a press button at the back to turn them on/off and they are very bright . The actual circuit board and LED lights are all packed into a half inch thick area that houses the LED lights so a further mod  and they probably fit anywhere and wire them up . Also added a few more photos of just the LED circuit and board.