"RBM" rbm2(remove wrote in message
...
Yes there is, it's called a faceless GFCI, but what I'd try to do is
intercept the cable just before it goes out of the house and install a box
with a GFCI device in it there

Could be rather awkward for periodic testing of the GFCI? A possible
problem is that the power feed to the lamp's switch does not have a
ground wire?

lee