UCO 12-Hour Natural Beeswax Candles for UCO Candle Lanterns 12-hour natural beeswax candles for use in UCO Candle Lanterns; ideal for camping, hiking, outdoor adventures, survival kits, and emergency preparedness Each 3.5-inch candle burns for 12-15 hours, with little smoke and a naturally pleasant aroma 100 percent natural beeswax formula (non-paraffin based) is clean-burning without residue; high-melt temperature reduces dripping Cotton wick is sized to maintain ideal flame height and optimize burn time Includes 3 x 3.5-inch natural beeswax candles for use with UCO Candle Lanterns to create an economical source of outdoor warmth and light