good product. it provides a mild warming to the body. max temperature is in the range 30-40°C. After some minutes you can reduce it. it's very confortable in the winter time. Each pad drain 2A of current at 12V max. Installation is not easy as it involves to remove the seat from the car and the seat cover from the foam. The switch is green colored, and this doesn't fit internal illumination of Toyota's. Price is a little bit high. You can get Two for the same price for other sources.
Very warm and severe I can spend winter comfortably