What use is the random-factor, if it is a certainty that one pulse will connect? It must be mathematically guaranteed to turn the light on, or else it wouldn’t sell. If so, does it make any difference at all that some pulses won’t go through?
My answer for this question is going to be based more on electronics than the halacha.
It seems to me that the randomness issue is simply a red herring. Computers don’t act randomly they simply follow instructions, you can see this in just about any programming language’s random function if you generate random numbers starting with the same initial seed value. What computers can do is simulate randomness to a user that doesn’t have access to the seed value. Therefore if you write a program to generate a series of random numbers those numbers are predetermined and not truly random. The next logical step is that if the switch’s wait cycle actually ends, it was predetermined to end, just that the mathematical formula to determine if and when is too complex for a mere human to know if and when it would in fact end.
BTW, I did read the patent.