Features: Surface insulation, safe, reliable and offers a long service life. Constant temperature heating, no open flame, heat up quickly. With mounting holes, easy to install. This system is energy saving, when the heater increases the environmental temperature, the power will reduce gradually within certain ranges. Applicable for heater, humidifier, drying machine, air conditioning and other commonly used appliances. Spezifikations:Condition: 100% Brand NewHeat Material: PTC ThermistorColor: SilverRated Power: 400WRated Voltage: 12VSize: approx. 150 x 68 x 18mm / 5.91 x 2.68 x 0.71inchInstallation Distance between Holes: approx. 137 x 55mm / 5.39 x 2.17inchHole Diameter: approx. 3.5mm / 0.14inchWeight: approx. 111gPackage Included:1 x PTC Heating Element