Xcellent Global Battery Powered 20 LED String Lights Spider Lights Halloween Themed Lights, Purple 7.2ft/2.2meters M-LD066 Creepy spider designed LEDs string light, perfect decoration for Halloweentheme parties, carnival, festival, celebration and special occasion Battery operated, non-waterproof, suitable for indoor using Two modes switched to be chosen: steady/ flash; requires 3 x AA batteries (not included) Energy saving and pretty performanceeasily to build a scary atmosphere. Low power consumption with a long service time, safe and reliable.