The wax globe glows by a small tealight candle burn inside, The Globe has 10mm thick wax wall, and a holder to place the candle lighting it in dark, & you can't stop yourself to say - Wow !! This globe can also float on water.. it may require a pig pool of water, & perfect to use on a pool side party. The diameter is 6 inch, and each candle last approx. 3 Hrs. (Tealight Candles). You can buy seperate tealight candles from us. Very unusual and attractive design and a beautiful gift choice.