Run the wire or cable to its destination.
Running wires without attic.
The actual install of recessed lights here https youtu be 5yc8aqnvqqg the long bit is actually used.
You ll need two wires one white and one black for one circuit or more if you intend to wire a three way switch from the house or add more than one circuit.
Use thwn 2 14 gauge stranded wire if you get power from a 15 amp circuit or thwn 2 12 gauge stranded wire for a 20 amp circuit.
On a single story home or the the upper floor of a multiple story home this means accessing your attic to run wire.
Attempting the job without preparation and taking the proper precautions can cost you time or money and can even be a serious safety hazard.
Attach the wire or cable to a fish tape or coat hanger using electrical tape and feed it into the hole until it reaches the opening at the other end.
But if you have knob and tube running in an attic or exterior wall the space can not be insulated until the wiring is replaced.
If you re working from the attic you can drop a weighted string down wall cavity then attach the wire to the string and pull it through.