Electric ceramic tart warmers are a safe alternative to burning candles. They produce no flame, soot or smoke. Just place your favorite tarts or oil on the ceramic warming plate, plug it in and turn it on! The ceramic plate will heat the wax, melting it and releasing the scent without having to light the candle. The 4" Dish is perfect for warming tarts, and scented oils. Our warmers are made of quality ceramic. There is an easy to use On/Off switch located on the power cord. Our candle warmers use 24 watts of power. Overall height 6" by 4.5" diameter.