Features 【Insulation and Safe to Use】This kind of PTC ceramic air heater has the characteristics of surface insulation and high safety. The heater contains 70 degree temperature control protection, so you can feel more at ease in daily use. 【High Efficiency Heat Transfer】This PTC ceramic air heater is an automatic constant temperature energy-saving electric heater. PTC ceramic heater adopts PTC ceramic heating element and aluminum tube, which has low thermal resistance and high heat transfer efficiency. 【Temperature Protection Function】This 48V PTC ceramic air heater designed with 70 degrees normally closed temperature control protector. 【Applications】This space heater is suitable for air conditioners, electric heaters, meters, general appliances, air curtains, humidifiers, etc. It is mainly used for heating the ambient temperature of small instruments and small cabinets. 【48V/110V for Choose】We provided 48V/110V type PTC ceramic air heater for choose, this one is 48V type. Specification: Material: Aluminum & Plastic Weight: 128g/4.5oz Heating material: PTC thermistor  Heating mode: heat through the flow of air Power: 200W  Voltage: 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