Features Automatic Constant Temperature: PTC electric heating device is an automatic heating device with automatic constant and gentle energy saving, which is a very practical heating accessory. High -heat Transmission Efficiency: Automatic constant temperature PTC electric heating device uses PTC ceramic heating elements and aluminum tubes, low thermal resistance, high heat transfer efficiency. Automatic Energy Saving: The PTC ceramic air heater has the characteristics of automatic energy saving, which can save our electricity bill well. Application: The application of electric heating device is widely used, which can be widely used in air conditioning, electric heating device, drying machine, humidifier, etc. Easy to Install and Maintain: PTC electric heating device is a stand with a stand, easy to install and maintain, and has excellent performance. Features: 1.Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. 2.This product is a electric heater with automatic constant temperature and energy saving. 3.This PTC ceramic air heater has the characteristic of automatic energy saving.  4.Easy to install and maintain, superior performance.  5.Application: air conditioner, electric heater, clothes dryer, humidifier, etc. Specification: Material: Aluminum Weight: 47g/1.7oz Power: 50W  Voltage: AC / DC 12V Surface Temperature: 200±10℃ Size: 95*31*25mm/3.7*1.2*1inch  Package List: 1 x PTC Ceramic Air Heater Note: Be careful when use it.This is a kind of surface electrified PTC heater. When the heater is working, the aluminum parts are conductive. Package List