Once again, the labeling plug boxes aren’t exactly helping the confusion. Are they inductors, ballasts, transformers? Let’s just write it differently on every model!

So I really appreciate everybody’s help in sorting things out. By now I realise I definitely failed to phrase my first post clearly (or even correctly).

Thanks for your reply. I appreciate your correction re inductors vs transformers. As I’ve written elsewhere, all I have to go on is what they’re labeled. Different blocks for the same lamps say one, some say the other. Some just go with “plugin” to add to the confusion.

As the lamps haven’t been working beforehand

The lamps do work, I tested them with modern, compatible energy saving LED tubes before cutting the wall plugs off. See my other reply with an image of the new tube’s specs.

Sorry, I can’t seem to add more than one image per reply. The above is one of my original warts. Attached here is a close up of another variant, found online:

Used to be fluorescent tubes when the lamps were made, yeah. Now they’re replaced with low energy compact tubes that are labeled and sold as LED.

Just be careful. I do not mean to sound condescending, but it seems you lack basic understanding of electronics. That combined with mains power is deadly. Don’t do it unless you’re sure.

Well, I know not to mess with live wires, so that’s one basic rule down. But you’re right, and I appreciate the warning.

Edit: fwiw, I’m trying to get a better grasp of electronics and electrics repair. If you have good basic learning resources you can share, I’d love to hear them.

I’d be surprised if the wall wart didn’t list both input and output voltage and current.

Yeah, me too. Hence my confusion at the labels:

Thanks for the reply!

The info missing from your post was the output voltage.

Yeah, the info I gave is all that’s offered on the transformer… LED driver… whatever. That’s why I interpreted the voltage as unchanged from input to output. If that’s even possible.