Obviously, you don't know anything about circuits, volts and related to Ohm's law

There are some articles for you:
https://en.wikipedia.org/wiki/Ohm%27s_law
https://en.wikipedia.org/wiki/Resistor
https://en.wikipedia.org/wiki/Volt
https://en.wikipedia.org/wiki/Light-emitting_diode

In fact, you told everything is completely wrong since you think christmas light has CPU, I was like what the fuck are you talking?