Flashing Panda LED Decoration Fairy String Lights, Submersible, 20 LED, 7 ft, Blue Lights, Set of 2 7 Foot Long String With 20 Mini LED Lights Simply Twist to Turn On and Off Bright LED Lights and Long Battery Life Uses 2 Replaceable CR2032 3-Volt Lithium Coin-Cell Batteries (included) Base is 1.25" Diameter and 1" high and is Fully Submersible