How long will a globe ice lantern last INSIDE?

The length of time a globe ice lantern will stay round in an indoor display will depends on how big you make it; how thick it is; where you display it; the room temperature; and what type of candle you use.

Put a soccer ball-sized globe ice lantern (8-9" diameter) that is relatively thick (at least 3” thick walls) in an indoor drip tray display at room temperature and burn a standard clean-burning candle inside, and it could last 5-8 hours. Put a cool touch LED light inside the globe and your times could double.

Put a basketball-sized globe ice lantern (10-12" diameter) that is relatively thick (at least 3” thick walls) in an indoor drip tray display at room temperature and burn a regular paraffin candle inside, and it could last 12-24 hours. Put a cool touch LED light inside the globe and your times could double.

If you use a candle with a thicker wick so that it burns hotter and brighter, it will decrease the life of a globe displayed indoors.

Note: As a globe ice lantern melts indoors, the chimney will grow until the globe resembles more of a cylinder, but the ice, as it thins, will start to show off all the interesting lines and crevasses. In other words, it will book amazing even as it falls apart!