Please solar power it, just to be the first and show it can be done with a little 50w panel...
I have one of 155W for all the lightning in my house, with that low consupmtion a 125W panel at 7.5A and a 72AH battery, with 8 hours of sun a day you shoul keep that baby runing all day long with just solar energy.
I can give you a table I made Calculos Sistema Solar sorry, it's in spanish.