for sale Handcrafted Audiophile Linear Power Supply by Kenneth Lau

[Distinctive]

The problem here is the missing CE marking.

This was discussed with Kenneth when I bought my Lumin PS.

European Regulatory Requirements - CE Marking

[Distinctive]

Well no; the problem (if there is one) is that it's not been passed for testing. The CE mark is just an acknowledgement that testing has been completed and the device is compliant.

Eloise

Well, this may still pose a problem with your insurance company if your house burns down and you have deliberatly used a PSU that is not CE marked that was found to cause it, I suppose.

But as you say, this is the buyers problem, not the seller...