Item Type: PTC Heating Element Material: Aluminum Alloy, PTC, Polyimide Film Heating Material: PTC Ceramic Heaters Lead Wire Material: High Temperature Resistant Wire Shell Material: Aluminum Shell Size: Approx. 35 x 15 x 5mm/1.38 x 0.59 x 0.20in Lead Wire Length: Approx. 15cm/5.9in Use Voltage: 220V Temperature Error: 10 Package List 5 x PTC Heating Elements 1. Please follow the use of voltage for power supply, the use of other voltage is easy to cause fire and product damage 2. Please allow some errors due to manual measurement. 1Thermostatic Heating: PTC heating element utilizes ceramic thermostatic heating technology to continuously output heat and automatically work at a constant temperature. 2Insulation and Heat Resistance: This 220V PTC heating element uses polyimide film to wrap the chip inside, which is insulated and heat resistant. 3Fast Heating: PTC quickly converts electrical energy into heat after power on, and conducts to the surface of aluminum shell within 10s, so it can be dry fired for a long time 4Long Lasting Use: The aluminum PTC heating element can work 7x24 hours without interruption and provide heat source continuously for more than 20,000 hours. 5Applicable: PTC thermostat heating element has no open flame, no redness, no toxic and harmful gases, and is suitable for use in wet environments.