Item Type: PTC Heater Plate Material: Aluminum Alloy, PTC, Polyimide Film Shell Material: Aluminum Shell Heating Material: PTC Ceramic Heater Wire Material: High Temperature Resistant Wire Product Size: Approx. 25 x 21 x 5mm / 0.98 x 0.83 x 0.2in Wire Length: Approx. 15cm/5.9in Surface Temperature: 220 Temperature Error: 10 Package List 5 x PTC Heater Plate 1. Please follow the use of voltage for power supply, the use of other voltage may cause fire and product damage.2. Manual measurement, please allow some errors. 1PROFESSIONAL DESIGN: PTC thermostat heater plate surface temperature is 220, wire length is 15cm, high temperature resistant, durable and easy to install. 2CONSTANT TEMPERATURE: PTC heater plate using ceramic heating technology, continuous heat output, automatic constant temperature work. 3INSULATED: PTC heating element internal use of polyimide film wrapped chip, insulation and temperature resistance. Can be dry burning for a long time. 4SAFE AND NON TOXIC: PTC heating element plate uses with no open flame, no redness, no toxic and harmful gas, suitable for use in humid environment. 5EFFICIENT: PTC will quickly convert electrical energy into heat after power on, and conduct to the surface of the aluminum shell within 10S. 6LONG LIFE: This thermostatic heater plate can work 7x24 hours without interruption, continuously provide heat source life of more than 20,000 hours.