The red LED did not light up when connected to a power source. I checked the power supply for 12 volts with a voltmeter and it read more than 18 volts. I've had the same one for over 15 years which I bought from a now bankrupt radio shop. So I know exactly how it works. As for the features that Revain wants to evaluate. It's not fat. It's bad value for money and definitely not warm.
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