1. Easy to Use: Easy to use, just plug it into your vehicle's 12V/24V cigarette lighter socket and turn it on. Effectively allows you to defrost or defog your window quickly so you can hit the road and get to your destination. 2. 2 in 1 cooling and heating function: change the switch and the hot air or cold fan comes out immediately. This heater is ideal for defrosting or demisting windows and windshields. It can also be used as a fan just to cool you down in summer. 3. Design: Car heaters adopt cigarette lighter socket design, built-in fuse, automatic shutdown protection, anti-voltage, and safer to use. Rotate the bracket 360, and you can attach the heater wherever you want. And adjust it to the angle you want. 4. Wide application: instant heating, automatic overheating protection. So you will always have the heater/defroster close at hand. They are widely used in cars, trucks, vehicles, air conditioners and other commonly used devices. Suitable for all 12V/24V vehicles. 5. High Power & Fast Heating: Upgraded car heater, 150W increased power, increased air temperature, defogging and defrosting and improved driving safety. It is a good helper in the car in winter.