#105

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This TSP-05 encapsulated 5-volt PSU looks like an HLK-PM01 (both externally and internally) so it is safe to use?

The answer is not straightforward. Although thousands of the HLK-PM01s have been successfully used over the years it doesn't mean they are safe; and being made in a country where safety standards are very different to those in Europe and the United States it means that there is always going to be an unknown 'safety gap' in the design or application of whatever standards are being used.

I'm tempted to use a TSP-05, however, as it is small (far smaller than a plug-in wall-wart) and cheap, and on closer inspection seems to be as good as the HLK-PM01. Let's have a closer inspection after we've talked about a couple of other useful items.

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TSP-05 5v PSU from AliExpress.com
https://www.aliexpress.com/item/TSP-0...

HLK-PM01 original from AliExpress.com
https://www.aliexpress.com/item/1x-HL...

Safe and certified version of above from Vigortronix (Rapid UK site) and its adapter board
https://www.rapidonline.com/vigortron...
https://www.rapidonline.com/vigortron...

Wikipedia article on Ground (vs Earth, sort of)
https://en.wikipedia.org/wiki/Ground_...)

Magnetic block to magnetise your screwdrivers (and anything else):
http://cpc.farnell.com/duratool/d0176...

Solar panel bus bar connecting strips - totally impervious to the weather:
https://www.aliexpress.com/item/2-Met...

CE fake and real logo
http://www.ce-marking.com/CE-marking-...

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