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Just did some quick measurements of the Sunbeam queen sized mattress pad and there's some interesting observations.
Each side starts at around 50 - 65 watts and then drops down to under 30 watts. The control controls that temp at which it starts cycling off and on to maintain a certain temp setting. It doesn't control how fast it heats, it heats just as fast on Lo as at does on Hi, it just shuts off sooner. It doesn't take too many minutes before it cycles at a setting of 4. Not quite sure why the wattage keeps dropping the longer it is on. Does the resistance drop as the filaments warm up???
As stated before, in a full night it will use about a penny a side per night or less with a setting somewhere near the middle in a 65°-67° bedroom. Not bad... I think it was the first thing I measured when I got my WattsUp.
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