Adding a LED light strip
The basement area of my 5th has 2 12v lights. I was thinking about adding a LED light strip. Something like this one: Not exactly like this but with a remote My question is powering it. You c...
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There are many different sizes of barrel plugs, varying both in outside diameter and in the diameter of the inner pin. You may or may not get lucky with the box o old wall warts.
Usually a device will have marked on it a sort of hieroglyphic showing what polarity it expects from the plug. Something like this:
Use an ohmmeter or whatever to figure out which wire goes to which contact on the plug.
Usually a device will have marked on it a sort of hieroglyphic showing what polarity it expects from the plug. Something like this:
Use an ohmmeter or whatever to figure out which wire goes to which contact on the plug.
