Features PTC heater adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. Suits for air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. This PTC small space heater 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. This PTC electric heater mainly used in small instruments, small box space environment temperature heating. Specification: Material: Aluminum & Plastic Weight: 238g/8.4oz Heating material: PTC thermistor  Heating mode: heat through the flow of air Power: 750W  Voltage: 110V (the bare line is connected, regardless of the positive and negative pole, the rated voltage can be)  Mounting Hole Distance: 120*68mm (mounting hole: 8*4mm waist hole) Corrugation Length: 96mm Size: 140*76.5*26mm/5.5*3*1inch Package List: 1 x PTC Ceramic Air Heater Note: 1.Lead color is random. 2.With 160 degrees normally closed temperature control protector, the heater should not be dry-dried.  Package List