1 Easy to Use: Easy operation, just plug it into your 12V/24V vehicle's cigarette socket and turn it on. Effectively allows you to defrost or demist your window quickly so you can get on the road and get to your destination. 2 2 IN 1 Cooling and Heating Function: Change the switch and the hot air or cool fan come out immediately. This heater is ideal for defrosting or demisting window and windscreens.Also can be used as a fan only to cool you down in the summer. 3 Design: The car heaters adopts cigarette lighter plug design, built-in fuse, automatic power-off protection, anti-voltage, and safer to use. Rotate the bracket 360 , and you can fix the heater where you like. And adjust it to the angle you like. 4 Wide Application: Instant heating, automatic overheat protect. so you'll always have the heater/defroster within easy to reach. They are widely used at car, truck, vehicle, air conditioner and other commonly used appliances.Fit for all 12V/24V Vehicle Cars. 5 High Power & Fast Heating: Upgraded car heater, 200W increased power, increased air temperature, defogging and defrosting, and improved driving vision safety. It is a good assistant in the car in winter.