Our smallest, but most popular size candle, the 4-oz., will burn for approximately 25 hours, if burned properly. We use only lead-free wicks for safety. You should clip your wick to 1/4" before lighting. The candle should be burned for 1 hour for each inch in diameter the candle is.....which in this case, is 2 inches. Never move candle while the wax is liquified.