The wiring of a lighted Christmas tree is a complex process, as it involves connecting multiple strands of lights and making sure they are properly distributed throughout the tree. Generally, you start by installing the lights along the base of the tree, running the wires up the trunk and along the branches. The wires should be secured to the branches with clips or ties to prevent them from slipping or falling. You can then plug in each strand of lights, following the manufacturer's instructions to ensure they are properly connected.