UCO 9-Hour White Candles for UCO Candle Lanterns and Emergency Preparedness 9-hour white wax 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 nine hours High-melt temperature minimizes dripping and soot Cotton wick is sized to maintain ideal flame height and optimize burn time Includes 20 x 3.5-inch citronella candles for use with UCO Candle Lanterns to create an economical source of outdoor warmth and light