Specification: heater cable 1) The outer Material: silicon rubber,glass fiber 2)Silicon rubberheat resistant temperature: 180oC 3) Ambient temperature : -60oC +85oC 4) Resistant voltage in water: 2000V/min(normal water) 5) Insulated resistance in water : 100 mega ohm 6) Tolerance power(resistance) : ±7% 7) It is widely used on refrigerators, air-conditioning and many home appliances PS: We can make differentsize heater and heating wireaccording to your requirements such as different Voltage, different power, different length and different width.