1、LONG SERVICE LIFE: PTC heater plate can work 7x24 hours non stop, continuously provide heat source life of more than 20,000 hours, suitable for use in humid environment. 2、FAST HEAT GENERATION: PTC quickly converts electrical energy into heat after energized, and conducts to the surface of the aluminum case within 10S, which can dry burn for a long time. 3、AUTOMATIC THERMOSTAT WORK: PTC heating element utilizes ceramic thermostatic heating technology to continuously output heat and automatically work at a constant temperature. 4、FINE WORKMANSHIP: PTC thermostat heating plate uses polyimide film to wrap the chip inside, insulating and temperature resistant. Fine workmanship and good performance. 5、SAFE TO USE: Constant temperature thermostat heater plate has no open flame, no redness, no toxic and harmful gas. Use voltage is 220V, lead length is 15cm. 5 x PTC Heating Element Item Type: PTC Heating ElementMaterial: Aluminum Alloy, PTC, Polyimide FilmSize: Approx. 35x15x5mm / 1.4x 0.6x 0.2inShell Material: Aluminum ShellHeating Material: PTC Ceramic HeatersLead Wire Material: High Temperature Resistant WireUse Voltage: 220VLead Wire Length: Approx. 15cm/ 5.9inTemperature Error: ±10℃Dry Burning Power: 9W