Recently I added 5 LED lights to my Kitfox, 2 facing forward, 2 on the wingtips and 1 on the rudder. Cost was $150 including shielded cable. The lights have aluminum backs and come with 4 wires: power, ground, mode (19 different modes), and synchronize. There is no external power supply and the flashing modes are built into the lights. All wingtip lights are synchronized and very bright. Bonus: no interference with my radio system. Very happy with the LEDs that I bought online at Superbrightleds. Here is a short video showing the lights https://youtu.be/ku45Shk5hDE