BlueDot Trading&reg; 24 Pack 7 Color Changes Automatically Submersible Waterproof Wedding Underwater Tea Light Sub LED Light for Decoration Wedding Party Bar etc.*Colorful* Submersible Bright Light for Wedding Arrangements, Center Pieces, Fish Tanks and much more Approximately 1" tall and 1.25" wide Replaceable Batteries  Powered by 2 CR2032 button cell batteries (initial 2 batteries included) This set of 24 multicolored submersible LED tea lights is the perfect lighting for any special occasion or event such as parties, events and especially for Typically lasts 30-40 hours (your results may vary)