"single cream" is more of a british term it generally means cream that is lighter in butterfat. Sort of what we call 1/2 & 1/2 about 12-15%.
Double cream is what we call whipping cream or heavy cream. (46% or so).
I have never used "lite" cream so don't know what it is. But I would probably use part 1/2 and part heavy cream.
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