It's an Australian plug - I believe it's similar to some that are found in China, however ours require the live and neutral pins to be insulated part of the way. As for replacement parts, I just ordered a 20x pack of cheap capacitors from AliExpress for a few dollars. First one I repaired was about 6-8 months ago and its still working fine - as are the ones I've repaired since.

Hi all,

Wanted to share this as I couldn't find anything on the internet about this problem, so pulled one apart and found the problem myself. Years ago I bought approx 20 or so Crest Smart Home Single Power Adapter smart switches - small 240v Tuya-compatible (rebranded) smart switch devices with power monitoring, which Big W had on sale for half price. Paid $7.50 each for these, and they've been incredibly useful for turning things on and off remotely... and monitoring how much power each device uses.

However, after about 12 months, I had a number of these stop working...

Long term member who's referenced various posts on here to repair things which appear buggered but are just suffering from bad caps or other components. Never felt the need to post anything, however have recently started repairing a pile of Tuya compatible smart switches, all of which have a bad 10v 470uf capacitor in them. Given there is no information on this problem or the solution anywhere on the internet, figured I'd post some instructions on a separate thread on here, so if anyone ever has a similar problem with one of these devices, they'll know how to fix it