AZDelivery 220V to 5V Mini Power Supply Module compatible with Raspberry Pi

I bought these PSUs for the little project shown in the photo. Worked really well, much more suited to the project than something bigger.I did a burn-in at home before the project was installed on-site. The PSU failed. Have replaced the PSU with one from the same batch, I'll be doing an extended burn-in before taking it to site - some 70 miles away.The second PSU failed within 30 minutes. Looking at another poor review I checked a 39-ohm resistor within the PSU - open circuit.I had more issues, so I have scrapped ALL five the I bought!

I had a stair light that used a PIR sensor and a solid state relay in my stairwell. It used to be powered by a 9v PP3 battery that I would have to replace every 6 months. No More. Really good if you know what you want it for.

Works perfectly. Build quality is good, as with all AZ Delivery products I bought. Used for automatic aquarium top up, powering monostable vibrator and relay.

I am in love with this AC/DC converters.