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Using wire nuts, connect the corresponding wires from the new light fixture to the ceiling wires. Connect the black wire from the fixture to the black wire from the ceiling (hot to hot), the white wire from the fixture to the white wire from the ceiling (neutral to neutral), and the ground wire (bare copper or green insulated) from the fixture to the ground wire from the ceiling. Twist the bare ends of the matching wires together clockwise and then firmly screw on a wire nut over each connection until secure. Neatly fold the connected wires and tuck them back into the electrical box, ensuring no bare wire is exposed.