

if you’re in Europe, only buy CE certified products.
Two things to remember here:
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there is also the counterfeit CE (“China Export”) marking on some cheap products. So some noname super cheap brands are not necessarily actually CE marked despite having a “CE” label.
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CE marking is a just self a certification. It’s basically the manufacturer pinky promising that they’ve totally built something according to CE specs. Only trust it from a reputable brand, because there’s a shit load of wiggle room within CE specs.
Well sort of, because this testing and validation is allowed to be done by themselves without 3rd party oversight. So it still all relies on trust in the manufacturer.
Edit: there’s also the loophole that you can assume your product is CE compliant if you only use CE certified components. You don’t even have to document you’re using them correctly or within specs.