Pack of 2 Sets LED Moon Lights 30 Micro Starry LEDs on 9.8 Ft Silver Ultra Thin String Copper Wire, 2 x CR2032 Batteries Included, Ideal for DIY Wedding Centerpiece or Table Decorations (Warm White) 9.8 Feet in length Light string is submersible Battery pack not submersible Includes on and off switch 21 Hours of battery life. Small battery pack is easy to hide.Low voltage,For spare batteries, pls search B0136BFTWI