【Fast Heating】The car heater fan has a double switch, high power 600W-800W, 3 air cavities, fast heating and the temperature can reach 80-100℃; compact size, low noise (almost no noise); is the ideal of your car heater. 【Easy to Use】This car heater fan windshield defroster is very easy to use, just connect the battery positive and negative (red: positive, black: negative); suitable for 12V cars, trucks, SUVs, vehicles, vans, etc. 【High Thermal Conversion Rate】The car heater fan has a high thermal conversion rate and is heated in real time. Even in freezing temperatures, the room temperature can be guaranteed. It is convenient, the most important thing is that it is cheaper to replace the expensive electric heating system. 【High-quality materials】The portable car heater is made of high-quality iron materials. It is strong and durable, has good hardness, is not easy to damage, and can ensure long-term service life. 【Fast heating warmer for winter】Automatic fast heating in winter is an