Fast heating: The car heater has dual switches, 600W-800W high power, 3 air chambers, fast heating, the temperature can reach 80-100; small size, low noise (almost no noise), it is an ideal choice for your car heater Easy to use: This windshield defroster car heater fan defogger is very easy to use. Just connect the positive and negative terminals of the battery (red: positive, black: negative); suitable for 12 V cars, trucks, SUVs, vehicles, vans, etc. High heat conversion rate: The car heater has a high heat conversion rate and provides real-time heating. Maintains indoor temperature even in freezing temperatures. Practical and most importantly cheaper to replace expensive electric heating systems HIGH QUALITY MATERIAL: The portable car heater is made of high quality iron material. Sturdy and durable, good hardness, not easy to damage, long service life Warm Winter Fast Heating: Car winter fast heating is ideal for melting/dustproofing car windows and windshields. They can help increase the temperature inside your car, warm your feet, and remove frost and fog. Have fun warming up during the cold winter months and enjoy environmentally friendly benefits