Burn time is approximately 35-40 hours depending on air currents in the home or office. All of our candles are made with 100% soy wax, and 100% braided cotton wicks with no lead! Our soy candles are made from soybeans and are completely biodegradable. They are renewable, sustainable, environmentally friendly, and biodegradable, water-soluble. Since the melting point for soy wax is relatively lower than petroleum or beeswax, they are longer lasting and have a cooler burn. Always burn candles in areas free from drafts. Never leave your candle unattended.