Safe and Beautiful:LED String Lights consist of high quality matte white ball lamps, have no peculiar smell and are harmless to you and your family. The string lights have 40 LED lights with a total length of 6 meters. Battery Operated & IP44 Waterproof: These outdoor string lights use 2 x AA batteries (batteries not included). Outdoor LED string lights is IP44 waterproof, you can use it even in the rain and won't rust easily. The battery box has a thickened waterproof ring to prevent splashing, but it cannot be submerged in water. Wide Application:These string lights can be easily decorated around plants, garden curtains, walls and furniture. They are very flexible and make great decorations for parties, Christmas, weddings, nurseries and camping. It can create a warm and romantic atmosphere at night.