Check this out, i is the "Lumilite" LED-strip lighting system from Hobbyking. The system consists of a small 2s lipo-powered power unit and seemingly endless amount of 50cm LED-strips. The Twinstar has now 6 of them, and the outer ones have been painted red and green with a permanent marker. Note that the colour is visible only after a clear tape is inserted over the LED and then coloured with the marker. A new coloured tape layer will emphasize the colour more. Based on my previous night flying experiences, it really helps to know which wing you really see...If it doesn´t rain today, I will try flying this Christmas tree!