Micro LED White Lights on Ultra Thin Wire- Battery- 2 Sets-30 lights- Fairy-Underwater 30 Micro LED Lights on a 7 Foot Long Ultra Thin Silver String Wire Wire and Light Part Totally Submersible but NOT BATTERY PACK !!! Over to 48 Hours Non Stop Operating Time These have a 7" lead and lights are 4" apart and are 10' long. Battery Box is 3/4" x 2"x 2 5/8" and holds three AA batteries