I have just replaced two kitchen spot lights driven from a single switch. They work fine and when I test them with a mains testing screwdriver, the metal frames are not live. ( I checked the mains testing screwdriver works fine) so all should be well. BUT I have a mains testing pen and I don't quite know what it is telling me. When the correct fuse is out (their are two lighting circuits) the pen glows from a small area around the ceiling mount. When the light is lit the whole frame produces a pen glow.
are they safe? Thank you
are they safe? Thank you