Vehicle heater defroster is ideal for defrosting/demisting window & windscreens, it’s designed to quickly remove frost and mist on the windshield of the vehicle. It helps to warm you in winter in car while you drive. Simply plug in the cigarette lighter and it will heat up quickly. With the warmth in your car, you can travel safely and comfortably to where you want. It also can be used as a cooling fan to give you wind in the hot summer. With the switch button you can choose the mode. Low energy consumption, low noise, strong wind.It’s useful and helpful in your all year 4 seasons. It works for 12V and 24V vehicles.