Submersible Battery LED Everlasting Tealights Floralyte, Color Changing with 7 Rainbow Colors. Great for Wedding Centerpiece, Christmas, Thanksgiving, Party Lights. Set of 10 Waterproof Wedding Underwater Battery Sub Lights Bright Light for Arrangements. Lasts 12-16 hours underwater. 1" tall and 1 1/4" across These lights can be used for Parties in arrangements or put in a Pool of water, fishtanks, anywhere you want to light up-8 colors available.