I want to wrap the trunk and lower branches of some interestingly shaped oaks in my back yard with white lights as part of my overall landscaping project. I like the intimate atmosphere it can create at night. It would only see special occasion use. I am at a point in my landscaping plan that I can run 12v wires with relative ease, 120v with increased but manageable difficulty. I want the lights to stay in place and be as zero maintenance as possible. Any suggestions, cautions, recommendations, or other insight on a project like this? First off, I can't even figure out what would be the best lights to use.