Battery Operated Multi colored Diamond Lantern Ball LED 10L Set. Size: 2.5 inches (each Ball). Timer function (6 hours on - 18 hours off). Each of the 10 light covers in this set has a multi-faceted silver ball design. Each set has a 12" lead wire and 12" bulb spacing. Requires 2 AA batteries, not included. Indoor Use Only. Holiday Lights Sets, Lighted Novelty Lights and more by by Kurt S. Adler, Inc. creators of renowned Christmas Decorations and Holiday Decor.