This LED string light is safe; not easy to scald and break down; Bright warm white lights with cotton ball decorations It powered by electric with plug-in design which is convenient for daily use. Transferring the function mode by the button on the white controller box, with 8 different flash mode. Indoor Fairy String Lights are flexible, portable and easy to store. You can make it to any shape you want according to the application environment This charming metallic string lights make around more beautiful at night and create romantic atmosphere. This is not a fully waterproof string lights, you shall keep the controller and plug away from water.