My "power in" box has its black/white and ground and also the three wire cable( black /white /red and ground) and also the first light wires ( black/white). how do I wire this.
It is going to two lights– the first light is pretty simple – just black and white– ends at fixture— also the cable feeding light # 2
and then moving on to the second three way box.
It seems I have an extra black wire in the initial "power in" box…
Do I hook the black power in with the black cable and let the current circulate?
or attach the power in to the dark screw. and then what do I do with the other two black wires? black cable to black first light? white cable to single light screw side,( as traveler) and red to double screw light screw side?
I have seen a couple photos and nothing is crystal clear.
Best Answer
Based on my understanding of what you have described, I believe you are dealing with a dead-end 3-way switch setup with what is known as an extended switch leg. Translation: all junctions are made in the first 3-way switch box.
Your questions/guesses on how to wire it are not exactly clear. I recommend following this wiring diagram. Please clarify if this wiring diagram does not apply to what you have described.
Wiring Diagram
Circuit Example