Features SAFTEY AND INSULATION, This PTC ceramic air heater has the characteristic of surface insulation and high security. RANGE OF APPLICATION, air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. GOOD HEAT EFFECT, Adopts of PTC ceramic heating element and aluminum tube, low thermal resistance, high heat transfer efficiency. ENERGY SAVING, This product is a electric heater with automatic constant temperature and energy saving. With mounting holes, easy to install. SATISFACTION GUARANTEE, We care for every customers feeling.If this product does not meet or exceed your expectations,please send it back for a 100% refund no questions asked. 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. With mounting holes, easy to install.Application: air conditioner, electric heater, instrument, general appliance, air curtain machine, humidifier, etc. Specification: Material: Aluminum Weight: 73g/2.6oz 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: 100W (dry burning power: 30W)  Mounting distance dimensions: 101*31mm  Size: 113*35*26mm/4.4*1.4*1inch (corrugation length 54mm)  Package List: 1 x PTC Ceramic Air Heater Package List