The LED Battery Timer Lights, Brown Cord, 35 Lights set all add a little sparkle and light to any setting. This string of mini LED bulbs has a brown cord to blend with rustic decor and measures 18 feet long. The lights have an automatic timer that illuminates for 6 hours and turns off for 18 hours, and they require 4 AA batteries (not included). Add more sparkle with one of seven twinkle or flashing patterns or choose steady illumination. Lights are acceptable for use indoors and outdoors.