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Trusted Lifetime subscriber
The two metal pins at the bottom are are where the prongs from the mains connector touch the PCB:
This is the underside:
Bottom right is the mains input, they've at least allowed some creepage distance before it goes into the full-wave bridge (a Diodes Inc MB10F clone), but there's no input filtering, nothing. The switchmode controller IC is totally anonymous, could be anything. And this:
sure isn't an X/Y-rated cap.
Looks like it's a one-size-fits-all circuit since they're also using it for USB chargers and who knows what else.
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