Holiday Decoration EGLOW Best Flameless Tea Light Floating Candles - Flickering LED Candles Lot of 12 Color Changing - Battery Powered Romantic Floating Candles - For Weddings, Parties, Christmas, Funerals, Makes a Great Gift - Stunning Decor - Water Proof LED Tealight Floating Flameless Candles , Color Changing Smokeless Candles Bulk Tea light Best Holiday Gift - For Outdoor / Indoor Events Pool -Pond -Water Decoration Easy to use, simply drop it in to float in water. the bottom twists off to replace battery. Energy-saving, safety, flameless, smokeless LED lights, zero carbon emission and can be reused Water-activated, when you put it into water it will light and float on the water, it is easy and convenient to use