Hope I'm in the right forum here. I'm just Joe Homeowner looking for the answer to a puzzle. I recently replaced my two porch light fixtures using the existing wiring. Now the bulbs blow after only four or five days, and they are lit only from dusk to about 11 p.m. I read somewhere (of course I can't remember the source) that a high-resistance short can be caused from cracked insulation (very likely in this case)and that such a leak would not be enough of a short to trip the breaker but "at the very least you'll burn out your bulbs faster." Am I remembering this correctly? It doesn't make sense to me because wouldn't a short be a decrease in current to the bulb, not an increase? If I'm way off on this high-resistance short theory, any ideas on why I'm suddenly burning bulbs so fast? Thanks for any help.
