[High-quality material] The automobile heater adopts anti-oxidation alloy heating wire, which has high heat conversion rate, high pressure resistance, fast temperature rise, slow aging, and long service time.[Driving safety] The hollow air outlet design on the top provides high-efficiency heating rate, which can quickly remove the frost and fog on the windshield of the vehicle to ensure driving safety.[Safe use] The air can be heated quickly without waiting for the engine to warm up. It adopts a cigarette lighter plug design, built-in fuse, and automatic power-off protection, making it safer to use. Output: 150 W maximum. Working voltage: 12 V[360 degree rotation] Due to the ergonomic hand design and portable size, this car fan heater defogger is easy to install and install in your car. The 360-degree bracket is specially designed for adjustment and can be easily adjusted to the desired angle.[One machine with multiple functions] Switch between hot and cold. This windshield fan is not only very suitable for defrosting/defogging windows and windshields. But it can also be used as a cooling fan to provide you with air in the summer. You only need to replace the switch, and the hot or cool air will come out immediately according to your needs.