Leegoal Submersible LED Decor Underwater TeaCandle Light For Wedding, Green,10 Pcs 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.