Energy saving heater, fast heating speed,designed for battery Ceramic Heater Existing Specification:Dimension:42*36*1.2mmVoltage: 1~12VResistance: ... : ≥300Mpa The thickness, width and length can be adjusted at random as required by customers. Alumina heaters are used for hair ... ,non-pollution , non-rupture,no weak soldering 3.7V heater,ceramic heater, small size, battery heater