Powered by cigarette lighter socket, quickly heats the air in your car without waiting for the engine to warm up Very useful to solve the problem of fog and frost on the windshield-window of your car, which obstructs the view. This portable 12V defroster heater can keep you warm in winter and can be used alone as a fan to cool you down in summer Ceramic-based laminated aluminum alloy heater with automatic overheat protection, quiet, reliable and safe to use 360 degree rotating base, designed for free adjustment, convenient to direct heating or cooling on demand