19 Color and DimmableThis battery powered lights includes 50 LED ball, ultra-bright. The RGB string lights comes with 16 fantastic colors, 3 mixed colors, and 7 dynamic multi-color modes. You can choose different colors to create a charming, warm and attractive ambiance in your home and shops. Memory Function & TimerThe memory function of the battery operated lights ensures the mode of twinkle lights keeps the same as you choose last time, even you cut down the power. Particularly, the outdoor string lights also built-in Timer(4H/6H/8H), will be turned on for 4/6/8 hours and 20/18/16 hours off automatically cycle.