Low sound (almost no noise). Low power consumption, high efficiency. of high heat conversion, does not affect the performance of the original car, continuous use of 40A for 10 hours does not affect the ignition, completely solves the problem of insufficient power when operating the air conditioner. Adopt advanced eco-friendly heating quartz tube; domestic. The machine is made entirely of metal. You can also use the shell to heat the effect. Enjoy the scorching winter heat, environmental protection, widely used to raise the temperature in the car, warm feet and hands, defrost and defrost. At Use; it heats up immediately when plugged in.