Features Adopts PTC ceramic heating element and aluminum tube, low heat resistance, high heat transfer efficiency This product is an electric heater with automatic constant temperature and energy saving This PTC ceramic fan heater has the characteristics of high safety and surface insulation. With mounting hole, easy installation Lead material adopts high temperature resistant wire, safe to use Features: Adopts PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency This product is electric heater with automatic constant temperature and energy saving This PTC ceramic fan heater has the characteristics of high safety and surface insulation. With mounting hole, easy installation Lead material adopts high temperature resistant wire, safe to use Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier. Made of high quality material, with long service life Technical features: Heating material: PTC Voltage: 220V Power: 300 W. Size: 12 x 6.5 cm/4.72 x 2.56 inches (76 mm corrugation length) Weight: 150 g Package includes: 1 x ceramic air heater. Note: No need to distinguish "positive pole" and "negative pole" Package List