New 3rd Brake Light Option in General Discussion Posted May 4 17 hours ago, Ronnie said: You can also go one step further in getting the attention of the driver behind you. I added a tiny flasher, smaller than a nickel, for just the third brake light. It goes inline with the wire powering the light so no need to run additional wiring. I have it set to flash the third brake light 5 times and then it stays on steady to alert drivers behind that I'm stopping. Found it on Amazon. Do they make a 6 volt.