The information provided by sellers suggests they aren’t identical (as stated on the packaging). On Amazon Poland, the ones described as being for the K2 Plus are twice as cheap as those described as being for the K2 Basic. I also found information here on the forum that someone received information from Creality support about the differences. That’s why I’m asking, as I don’t want to damage the printer’s electronics.
After repairing my printer, I need to check the print bed temperatures in mine. Did you check with or without the plate? Pyrometers can be very inaccurate on metal surfaces.