Fast heating: The car heater features dual switches with 600W-800W high power and three air chambers for rapid heating, capable of reaching temperatures between 80F and 100F. Compact design with low noise operation, making it an ideal choice for vehicle heating. Easy to use: This windshield defroster and car heater fan defogger is simple to operate. Connect the red wire to the positive terminal and the black wire to the negative terminal of the battery. Compatible with 12V vehicles including cars, trucks, SUVs, and vans. High heat conversion rate: Designed with efficient heat conversion technology to deliver real-time warmth. Maintains interior temperature even in extremely cold conditions. A practical solution that offers a cost-effective alternative to more expensive heating systems. High-quality material: Constructed from durable iron material, this portable car heater is sturdy, resistant to damage, and built for long-term use. Warm winter performance: Ideal for quickly defrosting and demisting car windows and windshields during winter. Helps raise cabin temperature, warm feet, and clear frost and fog effectively. Provides reliable comfort in cold weather with energy-efficient operation.