【Rapid heating】500W high power car heater used for windshield defrosting, demisting and defrosting. And preheat the engine coolant to prevent the wear of the engine that started at low temperature. 【Comfortable】This 500W car heater can be installed at the bottom of the seat, next to the foot or in any position on the car. Hit the road safely and comfortably and reach your destination. 【Wide Application】The heater can be applied to heat 12V car, storage battery cars, recreational vehicles and all kinds of other vehicles. Check whether the car battery is 12V or 24V. 【Less noise】The mute fan is quiet and no noise when working, creating a good environment for you.