How do you wire multiple lights starting at the lights first switch last and a power drop behind?

Answer 1

Imagine a section of railroad track where the rails are the power source and the ties between rails are the lights. The rails will supply power and let's label them the black rail (hot) and the other rail white (neutral). The earth they are resting on is the ground (bare copper wire). So each light must be connected to black, white and ground. To switch all lights at once we need to open the connection just to the hot side. Wiring in parallel like this example you run a wire between each light and connect the incoming black wire to the light black wire and the outgoing black wire using a wire nut. You do the same for white and bare wires. When you are done you have a circuit that looks like the railroad track. You could connect a supply at either end and the lights would light. You could then just insert a switch in the black side and control all lights.

In a situation where the supply is closer to one end of the circuit is closer to the other end physically you do the following. Run a wire from the switch to end where supply is located. On this wire wrap about 3 inches of black electric tape on the stripped white pigtail on each end. This designate the white wire is hot. Now connect black wire to one side of switch and taped white wire to other side. Connect bare wire to green ground terminal on switch. At the supply end connect the black wire from supply yo black switch wire and black light wire to taped white wire. Connect grounds together. Connect white supply wire to white light wire.