Features MATERIAL: The air heater uses PTC ceramic heating element and aluminum tube, which has low thermal resistance and high heat transfer efficiency AUTOMATIC THERMOSTAT: The PTC ceramic air heater is an electric heater with automatic constant temperature, which has good heat preservation effect ENERGY SAVING: This kind of PTC ceramic air heater has the function of automatic energy saving, so you don’t need to worry about power consumption EASY TO USE: The ceramic air heater is ingenious in design, reasonable in structure, easy to install and maintain, and superior in performance WIDE APPLICATION: The air heating element is widely used in air conditioners, electric heaters, clothes dryers, humidifiers, etc. with very good effects 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 & Plastic Weight: 128g/4.5oz Heating material: PTC thermistor  Heating mode: heat through the flow of air Power: 200W  Voltage (Optional): 110V / 48V (the bare line is connected, regardless of the positive and negative pole, the rated voltage can be)  Mounting distance dimensions: 56*68 mm (8*4 mm waist type hole)  Corrugation Length: 30mm Size: 76*76*26mm/3*3*1inch Package List: 1 x PTC Ceramic Air Heater Note: 1.With 70 degrees normally closed temperature control protector. 2. Lead color is random. Package List