Biiiiiig "maybe" right there. You know that old saying - "if something seems too good to be true, it probably is"...
1 Output Switching Power Supplies | Mouser Finland
Yeah, they're not 25$, but at least 1) they come from a reputable source (official channels, etc), 2) they've been safety-tested and approved, etc.
How many stories of shitty phone chargers burning down houses have there been? And those are "just" in the 3-5-10watt range...
YouTube (complete with transformer isolation analysis)
YouTube (ditto)
YouTube
YouTube
1 Output Switching Power Supplies | Mouser Finland
Yeah, they're not 25$, but at least 1) they come from a reputable source (official channels, etc), 2) they've been safety-tested and approved, etc.
How many stories of shitty phone chargers burning down houses have there been? And those are "just" in the 3-5-10watt range...
YouTube (complete with transformer isolation analysis)
YouTube (ditto)
YouTube
YouTube
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