LEDs themselves are very intolerant of voltage (well really current fluctuations, semi-conductors are weird), but that isn't an issue because the driver deals w

LEDs themselves are very intolerant of voltage (well really current fluctuations, semi-conductors are weird), but that isn't an issue because the driver deals with that and large swings will kill the driver or kill the driver and LED. LED tolerance doesn't really play into the scenario here. It's all about the driver.