4 Pack Battery Operated Fairy String Lights: Made with ultra-bright LED and durable silver wire, the christmas lights will be an ideal choice for your home décor. Each set contains 4pcs of string lights. Each battery christmas light length is 16ft with 50 LEDs. AAA battery case, batteries not included | Multicolor Christmas Fairy Lights Battery Operated with Timer: With built-in timer IC, when you power on the string lights at timer position, the lights will be on for 6 hours off for 18 ours repeated everyday as long as batteries’ power is enough. Free your hands from turning on/off all the time and safe energy | IP44 Waterproof LED String Lights: The silver wire string lights are IP44 waterproof and can be used as indoor outdoor Christmas decorations. Battery case of twinkle lights is regular case and should be covered from rain/snow when used outside | Easy Operation and Portable: The Christmas fairy string lights are easy for use. Just put AAA batteries inside the battery case with correct polarities and slide the switch ON/OFF/TIMER. With its small size, you can take the timer fairy lights anywhere conveniently for a romantic trip and it is easy to hide into your design works | Widely Application For Indoor Outdoor Use: The mini LED string lights are flexible and can be widely used for Christmas decoration, holiday, Halloween parties, wedding, garden, home,dorm, bedroom and centerpiece. It will create a warm, happy, romantic atmosphere. Perfect for DIY decorating the kid's room, girl's bedroom, Christmas tree, potted landscape, etc