The burning time of the small candle will be approximately 50 hours and for the large candle, it will be approximately 260 hours.
The first time you light your candle, let it burn until the wax surface is completely liquid. This will avoid creating a hollow around the wick.
Trim the wick regularly so that it is always only about 1cm long and remains centered and straight in the candle.
Never leave your candle burning unattended or in a draft.