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Carefully remove the outer jacket and any paper wrapping from the ends of the incoming wires in each electrical box to expose the individual insulated conductors (black, white, and bare copper). Then, use a wire stripper to remove approximately 1/2 to 3/4 inch of insulation from the end of each individual black and white wire. For a light fixture that does not require a ground, twist the bare copper ground wire together or bend it neatly aside inside the fixture's junction box, as it will not be used for the fixture itself.