Riin Submersible Battery LED Everlasting Tea Lights Great for Wedding Centerpiece, Christmas, Thanksgiving, Party Lights (White, Pack of 20) Re-usable, waterproof, wireless submersible LED lights Lights are about 1.25 inches in diameter by about 0.75 inches high. Perfect for lighting up vases and any water filled table centerpiece. Each light uses two CR-2032 batteries (included) and lasts approx. 48 hours. Submersible Bright Light for Arrangements.