Features: Premium Material: This heater is made of premium aluminum material which ensures the durability.Adopts of PTC ceramic heating element and aluminum tube low thermal resistance high heat transfer efficiency. Compact Size: This heater comes with a compact size which will not take off a lot of spaces.Ceramic air heater mainly used in small instruments small box space environment temperature heating. Handy Installation: This heater comes with a simple structure which is quite handy to be installed. Fine Workmanship: This heater comes with a fine workmanship which is quite long-lasting.The PTC air heater is a electric heater with automatic constant temperature and energy saving. Fast Heating: This heater comes with a fast heating feature which can save time. Ceramic air electric heater fit for air conditioner electric heater instrument general appliance air curtain machine humidifier etc Specification: Material: Aluminum. Specification Power(W) Long(cm/inch) Width(cm/inch) 105*50 200 13.8/5.43 5.2/2.04 120*50 200 13.8/5.43 5.2/2.04 120*50 500 13.8/5.43 5.2/2.04 165*50 500 17.5/6.88 5.2/2.04 Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. includes: 1* Heater "