 year, one battery for a year, and it's a motion detection light. So lots of opportunities to improve your lighting and your security at the same time. Margaret in Virginia is next on the Money Pit. How can we help you, Margaret? I have an old house. Part of it built Civil War era. Okay. The floors in the oldest part are pine, and the boards are about two and a half inches wide. And the newer part, the boards of the floor are oak.