I would only be interested in basic fault diagnosis really, so I could be sure there was an issue and then get an electrician out to investigate and resolve. The plug-in tester unit you showed looks quality, but probably too much expenditure for the occasional DIY user like myself. Putting the...
I already checked for the double square and it's not on the LED driver; neither is the shield version. There is nothing on the underneath, so all the markings are visible in the picture I posted.
Thanks for the responses.
The LED driver is not double-insulated (there is no class II symbol or marking I can see) and it does feel like a metal, not plastic case - this is a picture of it:
Below is a picture of the junction box I have with the unsheathed earth connection visible (the...
I'm replacing the 20W GU5 halogens in our kitchen with LED bulbs. I have suitable bulbs and also got LED drivers to replace the transformers, as I noted some of the existing ones had minimum load ratings and wouldn't be suitable.
I checked the existing setup and the mains twin & earth cable...