Plate heater,plater warmer 1,110V/220V,300W 2,Normally used sizes:Diameter 120mm, ... , As the surface insulation material, silicon rubber can make the mug heater and plate heater long life time.6, The etched ... surface heating uniformity which can extend the life of the mug heater and plate heater.7, High resistance to corrosion. Plate ... , Voltage: 110/220V,5, Wattage: 250W-500W Plate heater,plate warmer