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 surface insulation and high security. 4、Mainly used in small instruments, small box space environment temperature heating. 5、Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Features: Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. This product is a electric heater with automatic constant temperature and energy saving. This PTC ceramic air heater has the characteristic of surface insulation and high security.  Mainly used in small instruments, small box space environment temperature heating. Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Specification: Material: Aluminum Weight: 127g/ 4.5oz Heating material: PTC thermistor  Heating mode: Heat through the flow of air.  Lead material: silica gel high temperature wire  Voltage: 220V (the bare line is connected, regardless of the positive and negative pole, the rated voltage can be)  Power: 200W  Mounting distance dimensions: 55*68 mm Temperature control protection: heater contains 70 degrees temperature control protection  Size: 75.5* 76.5*26mm/3*3*1inch (corrugation length 30mm)  Package List: 1 x PTC Ceramic Air Heater