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stonefox

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  1. Is there a device that can be put on + wire of a transformer, and I manually adjust up or down to find the correct voltage? Example If I have a 15 volt - 5 A adapter - sets a variable device on the + wire - and the more I turn up from 0 the more power to the LED
  2. How do I measure how many watt LED diode is on. Have some different that I do not know the value of.
  3. Hello I have a TomTom GPS that need to be replaced, but I ran into the problem that dn current setup I have in the car has a 3.5mm jack with the new one is the Micro. There is an adapter that can solve this problem? All the one I can find online is for Headphones ...
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