Our electric tart warmers use a long-life neon bulb to warm the simmering bowl. Only the very bottom of the simmering bowl gets warm on this style of warmer. The bowl is also removeable. When the tart is finished (and cooled), simply place the bowl in the freezer for a few minutes. The old wax tart will pop right out! Enjoy flame-free fragrance with our electric tart warmers.