Dreidel, dreidel, dreidel. Decorate for Hanukkah with these ProductWorks Ultra LED string lights with dreidels. Decorated with 20 dreidel lights in green, yellow, and blue, this light strand will be sure to brighten any space with holiday cheer. It features 20 ultra LED bulbs that are equipped with a steady on/off operation as well as a twinkle function. These battery-operated lights are powered by two AA batteries (sold separately) and are intended for indoor use only.