These battery powered led string lights have 8 pre programmed sequences adjustable via the included controller switch the lights on to activate an operating cycle of 6 hours on and 18 hours off with the lights coming on automatically at the same time each day high quality leds have a long lifespan and are energy efficient whilst the waterproof battery compartment makes these pretty string lights ideal for creating festive lighting displays both indoors and outdoors r r 80 led battery pow