I purchased the Coleman Ceramic Heater due to a problem with my car which doesn't allow us to use the heat or defrost. I was very disappointed when I plugged in the product and no heat was given off at all, just a weak stream of cool air. I figured initially that the car must need to be warmed up but unfortunately, the heat was not affected by the engine warming up at all. Neither levels of airflow produced heat. I suppose there is a chance that we received a faulty product or there was a problem with our cigarette lighter (although it definitely had power). I hope you have a better experience with this product. I was pleased with the speed in which AutoBarn returned our money, even if we did lose a good portion of the return for shipping costs.