Dual Power Options 12V and 24V Car Heater for BMW 740i 750i 760i Alpina B7 Hybrid 7 F01 F02 F04 20072015. This heater is available in 12V and 24V versions to fit cars, trucks, and SUVs. Select the correct option for your vehicle. As a portable car heater, it provides reliable heating or cooling for year round comfort. 2in1 Heating and Cooling Function Designed as a portable car heater, this unit delivers both warm and cool air instantly. Use as a windshield defroster and heater in winter to melt frost, or as a mini fan in summer to reduce cabin heat. The unit offers flexibility for all weather conditions. Compact and Portable Design Small but powerful, this heater is easy to store and won't block your view while driving. The portable car heater features a 360degree adjustable base, allowing airflow direction to be tailored for maximum comfort. A space saving solution among car heaters for vehicles. Fast Heating and Effective Defrosting Built with advanced PTC elements, this car heater provides rapid heating in seconds. It works as a strong windshield defroster, quickly clearing fog or ice to ensure safer driving visibility. Unlike waiting for engine warmup, this car heater delivers instant results. Use scenarios Winter defrost and cabin warming: quickly clear frost from the windshield and warm the cabin on cold mornings, improving visibility and comfort without long engine idling. Cold start comfort: prewarm the interior while starting a journey, providing immediate relief and reducing wait time for the engine to reach temperature. Summer cooling on the go: when parked or during travel, use the cooling function to lower cabin temperature and improve passenger comfort.