Doesn’t deliver as advertised, with exception.
It does work, but not as described. Underperforms and doesn’t get as hot as it should. On high, it doesn’t even get to 9 watts, on low it doesn’t even hit 3.5 watts. Even plugs straight in without the power adapter, it doesn’t pull 10 watts.<br />Edit 1/2020- I don’t know how this is heated, but I’ve tested the temperature a few times. New, it was only hitting 40°C, but the last four or five times that I’ve tested it, it is hitting 45°C as advertised. I’ve also found that it’s good to use outdoors, I’ve thrown it into a summer weight sleeping bag while in 20°F or colder temperatures, and was able to stay warm enough throughout the night. Added a star for the new info.
Rating: 3 stars