I would convert my lighting to led so my draw would be 3.3 watts. I can find a 10w panel with 5. amp hr battery for under $100. That looks like it should work. I'm not really concerned with running out of juice in the middle of the night due to a few cloudy days. I am concerned about too frequent discharge.
I would welcome all opinions on better ways. Should I go with a bigger panel and battery and skip a photo cell and just let them on all the time? Price is my main concern with this application. In the location it is used I don't see myself needing more power or storage later.
Thanks, all