My house has a house number sign on the wall next to the garage. I
never knew it can light up at night until I recently opened it up and
saw 2 bulb holders with 2 bulbs, and 2 wire nuts. The 2 bulbs are not
working at this time but I am not sure if they are both bad or I need
to connect the 2 wire nuts to some light sensor devices to enable the
bulbs to light up at dusk. Can someone take a look and advise? The
bulbs are 18V and 6W. I tried to look for them everywhere but they are
really hard to find. Can I use a 110V, 6W bulb instead?
The wire nuts have a black, a white, and 2 small low voltage cables
connected to them. What are these for?

http://sopmedia.com/sopguest/roof/photo.jpg
http://sopmedia.com/sopguest/roof/photo-4.jpg


*I'm thinking that someone tried to get it working by supplying low voltage
through the telephone wires, but it was at one time a line voltage sign. I
can't say what it will take to get it working without seeing where those
wires go. Do you have any power there at all, low voltage or line voltage?
Are there any switches nearby that you don't know what their function is?