"The "blinkey" kit only has one "flaw"--- the leds will not be on for the same time-- the circuit as built will have one led on for 1/3 the other on for 2/3 of a cycle. Real crossing warning lights use a 50% duty cycle."
Not all crossing signals are that exact. There are many around here that have a duty cycle that is far from a perfect 50/50. Some, in fact, are so far off that you can hardly see the shorter flashes. Of course, we are talking about the LIRR, not a real railroad.
