One of my wall lights has stopped working. It has three small led bulbs all of which work. I have tested the power supply with an eletricians screwdriver and there is power going into the transformer and the two wires coming out of the transformer are both live - but no light! Sometimes when the screwdriver touches the terminals the bulbs light up and then go out, but mostly they don't. As the light was quite expensive I don't really want to replace it but am at a loss to know where to look next unless I take the light apart to see where the two wires coming out of the transformer go.
Any ideas anyone?