Pack of 4 PCS 20 LEDs Micro Starry Lights on Copper Extra Thin Silver Wire, 2 x CR2032 Batteries Required and Included, 3.5 Ft (1m) for DIY Wedding Centerpiece or Table Decorations (Warm White 4.5 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