FLEUR DE LIS PLUG IN FRAGRANCE WARMER - WAX MELTER by AmbiEscents AmbiEscents" decorative wickless PLUG IN fragrance warmers or wax melters use a 15 watt night light bulb to melt highly fragrant wax cubes. Each warmer is approximately 4.5 inches tall by 3.25 inches wide (exact dimensions may vary slightly). Warmers use a standard 120 volt wall outlet as their power source.