Sale! Koopower 2 Pack 16.4ft 40 LED Outdoor Battery Operate String Lights (8 Modes Select, Dimmable, IP65 Waterproof, Warm White). $17.99 $9.89 Including 2 Pack 16 feet 40 LEDs battery-operated weatherproof string lights can be used indoors or out without trailing cables or an external power supply. 8 Modes provide the perfect solution for your decorative lighting needs; Memory Function: Once the mode is selected, the light will work in this mode next time and you don’t need to worry about re-set until battery power is depleted. Timing program (6 hours on, 18 hours off) provides a set-and-forget operation; Set the mode you need before switching to ‘TIMER’. The timer function will work only when you switch to ‘TIMER’.