Hey Tails. I just discovered a creative and functional solution for a flashing scale anti-collision light! Dymond Modelsports sells a receiver battery voltage sensor that uses a flashing LEd light and some simple electronics ($8.95). It plugs into your receiver and flashes as long as battery voltage is 4.8 volts or greater. I had purchased a red warning light from Radio shack and mounted it on the belly of my Hanger 9 1.50 P-51 as a scale ornament (non-functional). When it came time to install the radio and this battery monitor I looked for a location somewhere on the aircraft. I ended up installing the LED inside this fake collision light. WoW. It's really quite bright, looks scale and gives me a great way to monitor battery voltage! I also used colored leds for the postion lights (non-functional). Flyboy1950