White Electric Candle Warmer. The warmer will diffuse a pleasant fragrance into the air when melting wax melts or oils. Eliminates the need of burning a candle and you can just melt the wax for the fragrance. Ideal for aromatherapy, dorm rooms, home office hotels or any place that you cannot have an open flame. Each one has a warmer surface of 4" diameter and is made of plastic and metal.