true, I'm contemplating renting a ditch witch and running the wire myself, and then having an electrician make the actual connection. Code says 24" deep, too much for a trenching shovel. I guess it will be worth the 5-6 hundred bucks in the long run...sign working an extra 10-12 hours a day
The people in one of my rent houses have these solar LED yard lights, they are f'ing bright. I think I saw them at Home Depot. I bet if you modified them with some chrome vinyl on one side you could make them shine in one direction. They are only like $25 for a set of 4. If it don't work you'd only be out that, and have some lights for your yard.
I can't tell you where to buy them but you may query your state highway dept.
Panels about 2' x 3' and a battery pack right under the panel. Put it on an 18' pole
and cover the pole with anti-climb paint (keep folks honest). Run the wire down to
the sign lamp. A local light shop can sell you a pretty bright bulb that uses low energy
(12 v DC) and probably the proper reflector to go with it.
The tough part is selecting a battery as they are all over the map when it comes to
prices and features.
Not unheard of is a wind turbine on top of a pole to charge the battery. Lots of new
technology in that area and prices are reasonable.