... :Dimension:42*36*1.2mmVoltage: 1~12VResistance: 0.8~1.3 ΩDielectric sttength: 3750V, 5s, Leakage current ≤ 0.5mAFlexural strength: ... of insulation allow direct contact with water, kerosene and metal. 3. High Reliability Superior dielectric strength and electrical insulation. Longer ... , non-rust,non-pollution , non-rupture,no weak soldering 3.7V heater,ceramic heater, small size, battery heater