Thanks Breezer. Would the top be where the fuse and the slider are, or where the little LED indicator is? All the wires go into one side of the unit, with the earths at one end (I recognise the symbol for earth - the only bit I'm sure about!)
Feeling really silly, but I'm having problems with a floor lamp with a halogen bulb and slider-type dimmer switch.
Basically, I removed the wiring to the dimmer switch when the lamp stopped working, and didn't make a note of which wire went where... I know, I know.
I've established that it...