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You can check the wires for power by measuring the electrical power with a wattmeter.You must be knowing the approximate range of the measurement to choose the wattmeter of appropriate rating.Then connect the wattmeter across the terminals and you should the measurement on the display. Another option to you want to just know if the wires are active is to use the multimeter and find the voltage across the terminals.Be sure to note whether the power is ac or dc,the multimeter should be set accordingly. I hope this answers your question. Swastik

If you have wattmeter or voltmeter you can measure power or voltage between two wires. In case you use wattmeter you should know approximate range of the measurement. In case you don`t have dose devices you can adjust bulb with electrical end to wires if bulb will work this means you have power in your wires. I you don`t now how to connect bulb to wires don`t do that. Hope my answer helped you to check your wire for power. Regards Michael.

You can go to the "source" or any electronics store and buy an adapter that does multiple voltages and has multiple tips for about $40.