Solar Christmas tree lights? Warning: out of season question.

I know it is almost July, but I like to plan ahead. I have the most adorable noble fir tree growing. It would look fabulous with Christmas lights. It don't want to b other with an electric extension cord to it for various reasons. Would solar work for lights for just one tree in December. Even if for a few hours into the evening, not necessarily all night long. I live in the coast range.