... Normally used sizes:Diameter 120mm,125mm,150mm and 155mm Plate heater,plater warmer1,110V/220V,300W2,Normally used sizes:Diameter ... surface insulation material, silicon rubber can make the mug heater and plate heater long life time.6, The etched foil Ni-Cr ... can extend the life of the mug heater and plate heater.7, High resistance to corrosion. Plate heater specifications:1, Max temperature: 300 C2 ...