Samyo Set of 36 Waterproof Wedding Submersible Battery LED Tea Lights Underwater Sub Lights- Wedding Centerpieces Party Decorate (Warm White) Very suitable for Wedding Centerpieces, Party Decorate, Birthday or any other Celebrations at night. Creates a warm ambiance without flame ,wax smoke or mess to clean. Waterproof. you can put it in a Pool of water, fishtanks, anywhere you want to light up. Provide up to about 40 hours of continuous lighting. Can be reuseable just change batteries. Note: Since because it comes with a fully charged battery,the color of the light may be bright and something like white. Twist the light for easy on/off. Replaceable Batteries 2 per light-#CR2032.