Trying to quiz a caretaker for any clues why a lighting circuit in a church is 0.5 MOhms IR.
"Any outside lights that might be full of water, or anything dodgy anywhere come to mind?"
Scratches head. "Well, there is a slightly iffy light in the slug cupboard"
"The what?!"
"There's a cupboard under the front porch, very damp, we call it the slug cupboard because they love it. The light works but it's seen better days"
He leads the way and unlocks a door that I've never been able to open.
View attachment 98076
View attachment 98077
Snip Snip. 400 Mohms. That will do!