"ERROR FREE (or Can-Bus) bulb already has that resistor built into the bulb so there is no need to install a separate resistor into the bulb circuit. Buying
ERROR FEE or Can-Bus bulbs is the easiest way to change over to LED lighting. I hope his explanation is understandable."

Totally understandable .. and if you by chance get a dash light error (highly unlikely)
Don't bother returning to vender.. add a resistor. You were notified of this in the advertisement.

It's real simple. All I'm doing is noting the disclaimer to any dash light errors.