Low Voltage: Mains powered fairy lights with low voltage transformer. Easy installation - Just put the batteries in and place the lights wherever you want to décor them in your house. Safe to use: LED string lights can stay cool and safe to touch. It's safe for your Children and pets High Quality String Lights】- 80 LED copper wire string light with PVC protected outside, is sturdy and insulated. The copper wire keeps the lights at a low temperature, perfect for family. The flexible wires can be easily bent, and shaped around plants, signs, furniture and almost everything else. Widely Used】 - The LED Fairy Lights is ideal for indoor decorations, it can illuminate the indoor romantic atmosphere!