Craft and Party, Waterproof Wedding Underwater Battery Sub LED Lights (12) White Submersible LED Tea Lights. Set of 12 Submersible Bright Light for Flower Arrangements, Ponds, Tanks and more Includes 2 Replaceable Batteries, #CR2032 Average Battery Life of 12-16 hours, 1" tall and 1 1/4" across Purchase from Craft and Party to ensure merchandise quality