Battery operated string lights with 64 LED"s is a brand new product with patented technology that allows the product to last the entire holiday season on one set of batteries. No more plugs to run and batteries to replace. This 64 LED string light is the perfect solution for the holidays or any time of the year. They are bright but safe and cool to touch when lit, and can last 30 days for 6 hours per day with 4 x "AA" batteries (included). Battery is easily replaceable. NO tools required. New and improved version for 2013! Hold control button for 5 seconds to power off.