Use the survival candle depending on how much light or heat is needed. If using one wick, burn it for only 3 hours and change to another, this way the candles will burn evenly. Candles will burn for 36 hours when one wick is used at a time. If 3 wicks are burned continuously, the candle will last approximately 12 hours. Matches included. Specifications: – Net Weight: 6 oz.