Nothing happens to the color. What should i be seeing?

The LEDs im using work on a min of 3V. They can go upto 4V if needed. With 80 LEDs that gives me an extra 80V to play with. If the voltage goes up over 320V then you would expect things to blow up anyway. If i were running 4 LEDs through a 12V transformer then i would expect 320V input to give me 16V output so still 4V per LED