Scentsy warmers don't have a wick and melt the wax using a light bulb. The warmers heat the wax up with a 25, 20 or 15 watt light bulb depending on what size of warmer you select. Scentsy candles are safer, stronger and are longer lasting than a jarred candle. These products don't have a dangerous flame that you may forget to blow out; it doesn't produce harmful chemicals into the air and has no black smoke. http://www.bestscentsintown.com