I disagree a degree Kelvin <> a Kelvin degree, because it is quite legitimate to specify a temperature DIFFERENTIAL, but in what ? Both Kelvin and Celsius are centigrade scales, based on a definition of 100 scale divisions between the triple point and the boiling point of water. There is no intrinsic magic in moving the reference to -273.15.

I work in refrigeration systems sometimes, where literature says clearly "Capable of operation at 100K"
Bearing in mind this is domestic refrigerator, that would be an impressive performance. Except they REALLY DO mean deg. K, or less pompously deg. C.It is a differential temperature specification.

Steve